Below is a comprehensive list of all(at least I think so)promising
PCgames slated for 2007 release.By "promising" I mean games with big
chances of scoring at least AA, while extremely small chances of
scoring below 7. I've tried choosing only games made by experienced
developers(who made good games in the past) or for other reasons
promising.
EXCLUSIVES
STRATEGY GAMES
Supreme Commander
Spiritual successor of Total Annihilation(one of very best, if not THE best RTS games ever)..done by TA creators.

World in Conflict
Alternative reality cold-war based wargame from Massive Entertaiment( their Ground Control and it's sequel got both 8.5 from GS)

SPORE
Will
Wright is a genius( he created games like Sim City and SIMS)..and this
one it's the most ambitious game in development right now.

Europa Universalis 3
Third entry in legendary strategy series

COMBAT MISSION: ShockForce
Combat
Mission is by far the best and most realistic series of wargames ever
created(CM and CM2 both got AAAs at gamespot). Now Battlefront is
moving the series into modern setting and to brand new engine(first one
since 2001)

Day of Atlantis
SF
RTS with strong focus on water(breaking dams, flooding terrain,
creating and using tsunamis etc) From makers of Sparta: Ancient Wars

Mythic Wars
A turn-based fantasy strategy game, inspired by Master of Magic

Disciples III: Renaissance
Disciples II: Dark Prophecy was one of best turn-based fantasy strategy games of last few years.
It was released in 2002, around the same time such "monsters" of this subgenre like Heroes4,
Age
of Wonders 2 and Etherlords were released. And yet it stood proudly
next to them and secured it's place as one of premier franchises of
this type. Now it's back in full 3D and done by Akella.

Inhabited Island
Turn-based wargame set in the world of Strugatsky brothers' bestseller "Inhabitated Island".
The
game is developed as a joint effort between Akella(Age of Sail2:
Privateer's Bounty) and Wargaming.net(makers of Massive Assault)

Field Ops
A modern RTS where you can take direct control of every individual unit. From makers of ImperiumGalactica2(8.4)

Settlers VI
the classic city-building series is returning to it's roots.

Heart of Empire: Rome
A city-building game by DeepRed(makers of MonopolyTycoon, also a city-builder which scored 8.5 at GS)

Jagged Alliance 3D
JaggedAlliance series is pure classic(Jagged Alliance 2 got 8.8 from Gamespot)

Theatre of War
A ultra-realistic WWII Wargame made by people behind IL2Sturmovik franchise.

Battlefront
New turn-based wargame from SSG(makers of Korsun Pocket(8.6) that GS named "easily the best 2D wargame for PC to date")

Seven Kingdoms: Conquest
New entry is likely the least known AAA series( Seven Kingdoms got 9.0 and it's sequel got 9.1)

Society
A MMORTS without fees. From makers of GalacticCivilizations2(9.0)

Sins of the Solar Empire
Epic
4X space empire building strategy with mix of Homeworld-like combat,
made by ex members of Barkin dog(where they worked on
Homeworld:Cataclysm, a space RTS that got 8.9 here)

Maelstrom
From makers of Perimeter(the most unique RTS in last 5 years-8.0)

Starship Kingdom
SF wargame from maker of Starships Unlimited (8.0)

HistWar: Les Grognars
A tactical and strategical game of insane depth by Battlefront

Ancient Wars: SPARTA
A historical RTS with incredible visuals that's getting great hand-ons previews

All American: the 82nd Airborne in Normandu
Finally a long awaited sequel to 101 Airborne: The Airborne Invasion of Normandy (8.8 at Gamespot)

SuddenStrike3
A epic WWII wargame by Fireglow(they aren't well known in US, but they are beloved strategy dev in Europe)

Air Assault Task Force
New hardcore wargame from makers of Armored Task Force(88% from PCGamer)

Galactic Civilizations 2: Dark Avatar
Add-on to 9.0 game

Spellforce II: Dragon Storm
add-on to 8.2 game

Blitzkrieg II: Fall of the Reich
Add-on to 7.8 game

Petroglyph/SEGA RTS
Petroglyph(basically leads from Westwood) are making near-future RTS for SEGA,
can you say "Command and Conquer spiritual sequel"? Combat Mission3
New entry in this ground breaking wargame series( CM 1 and 2 were both AAAs on Gamespot)
Codename Panzers: Cold War
this time published by 10Tacle, Pazers: Phase One and Two both got solid AA scored from GS
Celtic Kings2
Finally in 3D, previous games in the series wer both AAs at Gamespot
ROLEPLAYING GAMES
Hellgate: London
A new game from makers of Diablo2

Dragon Age
Bioware next epic

Witcher
Amazing graphics, ambitious gameplay, incredible book license and Bioware's backing

Drakensang: the Dark Eye
After
10 long years the "Dark Eye"(the pen and paper RPG setting, seen in the
great Realms of Arkania series of PC RPGs) returns to PCgaming.

Battle Lord
Fantasy
tactical RPG. Player will walk around big world map, do quests,
subquests ,upgrade his character, etc. Simply typical RPG stuff, but
the combat will resemble a strategy game. It will be turn-based ,you
will gather big parties etc. THe game is developed by the team that
made Space Rangers 2(8.1 at Gamespot)

Divine Divinity2
Sequel to one of best action-rpgs ever(8.6 at GS), running on Gamebryo 2.0 engine(Oblivion, Gothic3, Guild2 all used it)

Hard to be God
Isometric RPG set in world created by Strugacki's brothers. Co-developed by Akella

Afterfall
Indie
roleplaying game following the good old school principles of the genre:
non-linearity, turn-based combat, lots of roleplaying and decisions
having real effect on the game world

Sacred 2
Sequel hack and slash RPG that was propably the best DIablo2-like game(aside from Diablo itself
) ever released. This time Ascaron is making the game in in full 3D

Dungeon Runners
Online hack and slash from NCSoft backed by ex-Blizzard North guys

Mount and Blade
Indie RPG with revolutionary combat system(realistic swordplay, archery, mounted combat, total ownage)

Silver Fall
An action-rpg from MonteCristo and Kiev Games

Not the Time for Dragons
A
classic party-centered RPG based on steam-punk fantasy series of novels
by he game's based on a novel by popular Russian fantasy writers Nick
Perumov and Sergei Lukyanenko.

Legend: Hand of God

Lord of Creatures
Being made by lead designers of Commandos and Commandos2.

Loki
An action RPG from Cyanide(makers of ChaosLeague)

Titan Quest: Immortal Throne
Add-on to 7.6 action-rpg.

ENOSTA: Discovery Beyond
A space-based RPG from Akella(makers of SeaDogs and Privateer's Bounty)

Grafan
From
Emergence, company created by Herb Marselas(he worked in
Microprose/SpectrumHolobyte as one of first 3D programmers in he
industry, then at Intel ad then at Microsoft with Ensemble and Bungie
helping them create engines) and Chas. Boyd(for the past decade he was
the main DIrectX and Direct3D architect) 
Eschalon: Book One
Old-school indie RPG

Age of Decadence
Hardcore indie RPG

The Broken Hourglass
An
old-school Baldurs Gate 2-like RPG, done by Planewalker Games-indie
team consisting of cRPG modders, lead by Jason Compton (the best BG2
modder, he did wonders to NPC and party members dynamic interaction).
The game is set in Tolmira (sword-and-sorcery setting, which
PlaneWalker licensed) has isometric perspective, unlimited party,
complex party-to-party interactions, lots of good old-school
roleplaying and real-time with pause combat system

Seeker
Huge epic space opera RPG by LogicFactory,makers of ToneRebellion(8.1)

StarTrek Online

Ragnarok Online 2
Sequel to one of best and most popular MMORPGs in the world

Warhammer Online
by Mythic, makers of Dark Age of Camelot(the only MMO besides WoW to ever get AAA from GS)

Vanguard-Saga of heroes
A game made by most of Everquest creators

2 Moons
Dave
Parry(creator of Shiny Entertaiment and main driving force behing games
like MDK, Earthworm Jim or Aladdin(the Genesis one) ) took successful
Korean MMO Dekaron and is completely redesigning it's gameplay for US
market to create free, most brutal massively multiplayer online MMORPG
designed specifically for adult gamers.

World of Warcraft: Burning Crusade
An add-on to Gamespot's 2004 GOTY

Pirates of Burning Sea
A pirate MMO created by a team full of pen and paper RPG legends(like John Tynes)

Ultima Online: Kingdom Reborn
Add-on
that will completely change the game's graphics as well as add ton of
new content. It's being designed by Mythic (makers of Dark Age of
Camelot(9.1 from GS) and upcoming Warhammer Online )

Lords of the Rings Online
Another Turbine game

Tabula Rasa
new
MMOFPS by RichardGarriot(a guy who basicaly created the whole videogame
RPG genre, he made first videogame RPG, first FPP RPG, first good story
in RPG, every ultima revolutionized the genre, UltimaIV is basicaly a
source for all jRPGs(as DQ just copied it) and he made the MMORPG genre
what it is today, ultimaonline wasn't the first MMORPG, but it is to
MMORPGs what Doom was to FPS)

Wiki
Action-adventure MMORPG from Webzen

Fury
Online
action-rpg, concentrating on spectacular PvP combat,while throwing away
all the grinding. THe game is in development at Auran(makers or Dark
Reign(9.1), Trainz(8.7) and Trains 2004(7.9

Chronicles of Spellborn

Aion
MMORPG developed in newly formed NCSoft Seul Studios

Stargate worlds
MMORPG based on Stargate:SG1 and Stargate:Atlantis series

Starfall
open ended space-based RPG(exploring whole galaxies with different planets, etc) from ex Blizzard guys

Castaway's first game
another RPG from ex-Blizzard guys

RED5 MMORPG
Ex-Blizzard guys are making this MMO, it's running on Project Offset Engine and will be published by Webzen

King Isle's MMO game
KingIsle is company led by Tom Hall(ex-IDSoftware guy, responsible also for amazing Anachronox)
ADVENTURE
Cassius Pearl
Classic
point and click adventure game. THe team was formed by developers
working for big French developing companies like Ubisoft, Eden Studios,
Arkane Studios, Stormfront, and Pam Developement

Jack Keane
Humoristic adventure game from Deck13 (makers of Anhk)

Grey Matter
New
adventure game from queen of the genre and propably the best
storyteller this industry has: Jane Jensen(she created the incredible
Gabriel Knight series)

Simon the Sorcerer 4
The
classic adventure series is back, this time in traditional style of
first two titles(which were incredible) instead of following the
terrible road of Simon3

Penumbra- Overture
Comercial sequel to incredible freeware horror adventure game

Abbey
Cartoon adventure game from Alcachofa Soft (makers of Clever & Smart- 84% at Adventurecorner.de)

Overclocked
An
adventure game described as "present-day thriller game about the
psychological dimensions of violence."", from House of Tales, makers of
"Moment of Silence" (AdventureGamers-4/5, JustAdventure-A-)

Juniper Crescent - The Sapphire Claw
By Steven Ince, co creator of BrokenSword series

Experience123
From
makers of Missing: Since January. You play as observer, it is from this
detached position that you'll need to assert your influence in order to
guide Ai-controler woman through the challenges, using only the various
controls at your disposal, none of which allow you to communicate
verbally with her, though you can hear her speaking to you. By doing
so, you will also uncover clues about the woman's identity, your
relationship to her, and the mysterious circumstances in which you find
yourselves.

Vampyre Story
fromex-LucasArts guys(especialy the Curse of Monkey Island crew)

Sherlock Holmes: the Awaken
Sequel to Secret of the Silver Earring (7.3)

The Lost Crown: a Ghosthunting Adventure
New horror adventure from the master of this subgenre: Jonathan Boakes(creator of DarkFall series)

Reprobates
from makers of Nibiru(one of GS nominees for Adventure GOTY 2005)

Dead Mountaineer Hotel
Last-Express
like adventure game(meaning non-linear, NPC have AIs, goals, daily
routines and walk freely over the gameworld) based on Strugacki
Brothers' novel, made by Akella.

Kaptain Brawe
Indie oldschool comedy adventure game

Destination: Treasure Island
new game from Kheops(makers of games like Return to Mysterious Island or Safecracker)

Sinking Island
Detective adventure game from Benoit Sokal(Amerzone, Syberia series, Paradise)

Aquarica
A game by Benoit Sokal(Amerzone, Syberia 1-2, Paradise)

Riddle of Sphinx3
Sequel to OMEGA STONE(8.0)
new CYAN game
from company that made Myst series
PUZZLE
Crazy Machines 2
Sequel to 7.9 puzzle game, this time in full 3D

Bang! Howdy
from makers of "Puzzle Pirates(8.3)

Mr. ROBOT
A new puzzle game from MoonPod,makers of Starscape(it got 80% from PCGamer)

GOLF?
Insane puzzle game from Chronic Logic,makers of Pontifex series and Gish(8.4 from GS)

Gizmo
Game from makers of PlummIT, which was 3rd best puzzle game of 2004 by GameTunnel and PCZone Indie game of the month

Roboherd
from makers of Conquest Marines( Ut2003 mod that won 3rd place in "make something unreal" competition)

4th Introversion game
4th after Uplink, Darwinia and Defcon
ACTION
CRYSIS
FPS from Crytek(makers of Farcry-9.2 from GS). It's likely to be THE prettiest game available on any platform when it's released

ArmedAssault
New tactical shooter from the kings of the genre(OperationFlashpoint still hasn't been surpassed)

Project Offset
A fantasy FPS from makers of Savage(which won Indie GOTY 2003)

Enemy in Sight
Tactical shooter from makers of Mafia.

Rainbow Six 5

STALKER
Extremely ambitious game with graphics to die for

Alliance
FPS
that spans across the whole XX th century, using all important military
conflicts as it's setting. It's developed by Windwark technologies,
company who specialises in professional simulation software for
military.

White Gold: War in Paradise
FPS/RPG
hybrid that's a successor to Boiling Point. The game changes setting
and characters, but keeps the core gameplay concept intact. So we can
expect huge dynamic terrain to explore , incredible freedom, tons of
stuff to do and developer's ambition that would make most other
companies explode 

Call of Juarez
Wild-west FPS from Techland(XPandRally-85% at GS), published by Ubi Soft

Alien Swarm: Infested
AlienSwarm
was one of very best and definitly the most original
UnrealTournament2004 mods ever. Now the sequel is coming as commercial
game running on Valve's Source engine

Savage II: Tortured Soul
A sequel to innovative RTS/FPS mix that won Indie GOTY 2003

They Hunger: Lost Souls
Original
Hunger was THE best single-player mod for Half-life. Now the team
returns with commercial follow up based on Source engine

Armada Online
PC sequel to cult classic Dreamcast game

Death to Spies"
Stealth tactical WWII shooter

AVA
Unreal Engine 3.0 - based tactical shooter

Limbo
Indie platformer

Chrome2
Original
Chrome was good(7.2) FPS shooter that had lots of unrealised potential.
Since then Techland has been consistently improving and their last
title:XPandRally has 85% average at GameRankings we can propably expect
good things from this game

VoodooNights

Ascension
Freeware spiritual successor to Tribes, created by the team that made the Renegade mod for Tribes, Tribes2 and Tribes:
Vengeance

Bohemia Interactive's 'GAME 2"
OPF is still unbeatable I'm sure OPF2 will raise the bar even higher

Enemy Territory: Quake Wars
Sequel to marvelous EnemyTerritory

Alpha Prime

Tortuga: Two Treasures
A
mix of adventure and strategy set in Pirate world(think SidMeier's
Pirates only much deeper and with bigger empasis on complexity and
realism). Made by Ascaron(creators of PortRoyale 1 and 2,which got 8.5
and 8.3 at GS)

Collapse
TPP post apocalyptic action game from Creoteam(new team formed mostly by ex Crytek and Frogwares guys)

Far Cry 2

Left4Dead
C-op centered Source-based shooter from Turtle Rock and Valce

Ritual's DX10 game
new Warren Spector's game
based on Source and released through STEAM
Americas Army
this time on UE3.0
SIMULATION
Storm of War: Battle of Britain
From makers of Il2 Sturmovik

Jet Thunder
Historical air combat sim from Thunder Works

Enemy Engaded 2
Finaly ... the sequel to one of best heli sims ever created (9.0 from Gamespot)

Steel Fury
WWII tank sim

Space Force 2

T-34
Ultra-realistic tank sim

Chronicles of Tarra
Space-sim from Akella

Steel beasts 2
The follow-up to most realistic and hardcore tank sim ever.First one got 8.8.

BattlestarGalactica: Beyond the Red Line
Freeware space-sim on modified freespace2 engine

Fighter Ops

Infinity
MMO space simulator with huge prodeduraly generated universe

Starfox: Shadows of Lylat
Freeware fan-made game running on modified Freespace2 engine

Wing Commander Saga
Freeware fan-made sequel running on modified Freespace2 engine

The Tomorrow War
A space sim based on the trilogy of novels written by a famous Russian author, Alexander Zorich.

Gunship Apocalypse
SF arcade-sim from makers of Crazy Machines: The Wacky Contraptions Game(7.9 from Gamespot)

PT Boats: Knights of the Sea
Mosquito fleet simulator from Akella

Starsiege 2845Indie-made sequel to Earthsiege/Starsiege franchise

Rail Simulator
from makers of Microsoft Train Simulator(8.2)

Black Shark
A helicopter add-on to LockON

Whirlwind of Vietnam
A heli sim from 1C(makers of Il2Sturmovik series)

Knights of the Sky
A WWI sim made on IL2Sturmovik series engine

North Star
Second game by Kerberos (ex Barkin Dog guys),most likely a space sim

Silent Hunter IV
The
best submarine simulation series is returning. In 2005 SilentHunter 3
set new standarts for this subgenre(and Gamespot gave it 8.9). Now the
series is returning. The game will take place in Pacific Theatre. 
RACING
RACE: the WTCC game
New racing sim from Simbin(makers of mastepieces like GTR 1-2 or GT Legends)

Live for Speed S3
Major upgrade to already great Live for Speed S2
FiRST RACING
Ex-Lead guys from Papyrus(bassicaly the GOD of racing sims untill
Sierra closed them down)are now working on self-funded online-centered
hardcore racing sim to be released in 2007

Driver's Republic
A
sim mixed with hardcore car-building element(heads and
shoulders above anything done in the past) made by physics programmer
of RichardBUrnsRally

Xpand Rally Xtreme
The original XR has over 85% average at GR
SPORT
Soccer Fury
Online-focused
soccer game with added combat techinques, developed by Digital
Legends(ex Rebel Act guys, who created cult classic Blade of Darkness)

Draft dar sports- Pro Basketball
from maker of Tournament of Dreams-College Baskerball(8.9 from GS)
MULTIPLATFORMS
Bioshock
Spiritual successor of the masterpiece that System Shock 2 was.

Precursors
An
open ended action/rpg game which takes action in space and on
planets(think STALKER mixed with Privateer), from makers of BoilingPoint

Assassins Creed

Battlestations: Midway
From Mithis( Nexus-8.3 at GS)

Frontlines: Fuel of War
A
modern FPS with heavy vehicle action from Kaos Studios( which is
composed of whole Trauma Studios team, creators of legendary Desert
Combat mod for Battlefield 1942)

Age of Conan
Innovative MMORPG from creators of AnarchyOnline and LongestJourney

Unreal Tournament2007
THe king of fast online MP returns. Ut2004 got 9.4 from Gamespot

Stranglehold
Unreal Engine 3.0 shooter developed by makers of Psi Ops(8.4)

Heavy Rain
New
adventure game from the makers of Indigo Prophecy(one of the best and
most unique adventure games of last couple years, Gamespot gave 8,4 and
Adventure GOTY in 2005)

Command & Conquer 3: Tiberium Wars
Finally, one of THE biggest RTS franchises is back

Top Spin 2
Port of 8.2 Xbox360 game

Shadowrun
Team-based FPS based in legendary pen and paper setting

Cliver Barker's Jericho
If it's anywhere close to wonders Barker did with Undying (9.1) then we are up for one hell of a ride

DIRT: Colin McRae Off-Road

Portal
First-person puzzle game from Valve

Kane and Lynch: Dead Men
An action game centered around co-operation, from IO Software (makers of Freedom Fighters and Hitman series)

Overlord
An
innovative RPG that turns the fantasy cliche by 180 degrees. In
Overlord YOU are the big bad guy, who's goal is to dominate the
peaceful land, destroy all that is good and to become " the nastiest
bastard around". The game is developed by Triumph Studios(creators of
Age of Wonders series, all AoW games have been high AAs at Gamespot)

Half-life 2: Episode 2
Half-life 2 saga continues, the first episode got 8.7 from Gamespot

Rayman Raving Rabbids
Platformer from Ancel(creator of Rayman2(9.0) and Beyond good and evil_

Test Drive Unlimited

Kingdom Under Fire: Circle of Blood
Action RPG set in KUF universe(the last two KUF games were both strong AAs at Gamespot)

Necrovision
FPS
from Farm21(company created by people who worked on games like
Painkiller or MOH:AlliedAssault), running on heavily upgraded
Painkiller engine

Football Manager 2008
New entry in the best game series of this kind

Medal of Honor: Airborne Assault

Brothers in Arms 3

Huxley
A MMO FPS from Webzen running on UE3.0

HAZE
FPS from Free Radical(makers of Timesplitters series)

Alan Wake
A psychological thriller from makers of Max Payne series

Metronome

Sam Suede™: in Undercover ExposureŽ
Perverted
action-comedy game. Yes..perverted game that has intelligent humor.
There is only one person in the world who could pull this off: Al Lowe,
the creator of unforgetTable Leisure Larry series and he's working on
Sam Suede 

Alone in the Dark 5

Elveon
Unreal Engine 3.0 based RPG from 10Tacle

Interstellar Marines
FPS using Unreal Engine 3.0

Jade Empire
PC version of Bioware RPG

Halo2

Virtua Tennis 3

Team Fortress 2
This sequel to legendary mod will be avaible for free with Half-life: Episode 2

Splinter Cell 5

APB
A GTA-like MMO by the guy who created the GTA franchise

Omikron 2
from Quantic Dreams (makers of Fahrenheit/Indigo Prophecy)
Fallout 3
all we know is that it's being made
new Wolfenstein
Farm 51 FPS
the
team is composed of ex People Can Fly (Painkiller)and 2015 (Medal of
Honor: Allied Assault) guys, their first game is horror Fps running on
highly modified Painkiller engine
Obsidian 3rd game
Running on Unreal Engine 3.0