The 360s shooters for 2009 (most hyped)
Halo 3 Recon
Call of duty 6
Bioshock 2
Huxley
As for Action games
Alan Wake (Can't wait for this one)
Ninja Blade
Assassins Creed 2
Dead rising 2
Sports games
Madden 2010
Fifa 2010
Pro Evolution Soccer 2009
WWE Smack Down! vs. Raw 2010
Forza 3 (might come out)
Music games
Guitar hero 5
Rock band 3
rpg
Star Ocean 4
Mass effect 2
rts
Halo wars
Kingdom under fire II
There are others...If I'm missing them post the game.