Here's a list of the studios. Only four studios have 2 or more games I want to play next year. Every other studio has 1.
Bioware (3) - Mass Effect 2, Mass Effect 3, Dragon Age 2
SCE Studios Japan (2) - Team ICO Collection, The Last Guardian
Insomniac Games (2) - Resistance 3, Ratchet & Clank One 4 All
EA Canada (2) - SSX Deadly Descents, Fight Night Champion
Media Molecule (1) - Little Big Planet 2
Visceral Games (1) - Dead Space 2
Guerilla Games (1) - Killzone 3
People Can Fly/ EPIC Games (1) - Bulletstorm
Kaos Studios (1) - Homefront
Obsidian Entertainment (1) - Dungeon Siege III
Crytek (1) - Crysis 2
Day 1 Studios (1) - F.E.A.R. 3
NetherRealm Studios (1) - Mortal Kombat
Team Bondi (1) - L.A. Noire
Volition (1) - Red Faction Armageddon
Snowblind Studios (1) - LOTR: War in the North
Sucker Punch (1) - InFamous 2
Id Software (1) - RAGE
Rocksteady Studios (1) - Batman: Arkham City
Naughty Dog (1) - Uncharted 3: Drakes Deception
Bethesda Game Studios (1) - Elder Scrolls Skyrim
Kojima Productions (1) - Metal Gear Solid Rising
Evolution Studios (1) - Motorstorm 3
Thatgamecompany (1) - Journey [PSN]
Rockstar Vancouver (1) - Max Payne 3
Splash Damage (1) - Brink
Q-Games (1) - PixelJunk Shooter 2 [PSN]
Housemarque (1) - Outland [PSN]
Eidos Montreal (1) - Deus Ex: Human Revolution
Eat Sleep Play (1) - Twisted Metal: Apocalypse
Frozenbyte (1) - Trine 2 [PSN]
Ubisoft Montpellier (1) - From Dust [PSN]