Uncharted 2: INCREASE. The game looks a lot better, it will get better reviews, Sony remembers how to advertise now, and the userbase is large enough to SELL something now. Plus, no staggered launch!
Crack in Time: INCREASE. Once again, ToD launched on a pathetic userbase on a floundering console. By the time the PS3 had any software worth owning, ToD had already been overlooked by many. Also, ACIT will have multiplayer and be longer, and of course advertising again.
Modern Warfare 2: INCREASE. Are you serious? You REALLY think it's going to decrease? Hello, WORLD AT WAR outsold CoD4, and it WAS CoD4 in World War 2 with a flamethrower and Nazi Zombies. CoD just improves with every (Infinity Ward-made) iteration, and MW2 will be no different, Call of Duty name or not.
Assassin's Creed 2: DECREASE. The first game left a foul taste in most people's mouths, and hey, SOMETHING has to sell less, right?
Left 4 Dead 2: DECREASE. A lot of people seem to be claiming it doesn't improve enough on L4D, and are boycotting it. Many more probably won't have heard of it.
Halo 3 ODST: DECREASE. Obvious one, here. It's basically a Halo 3 expansion, and it may be standalone, but it's a budget game, with a short campaign, and a HALO 3 map pack.
Forza 3: Depends. Probably a DECREASE. Lots of competition this holiday season, not least from Gran Turismo, and it probably won't be bundled as much.
Splinter Cell: Conviction: INCREASE. For obvious reasons.
(Former) Lead Moderator and (Eternal) VGC Detective 
