A few 2009 exclusives I'm looking forward to:
Alan Wake
Kingdom Under Fire 2
Mass Effect 2
Star Ocean 4
Those are the main ones off the top of my head that will all be day-1 purchases.
There are plenty of exclusives, but it's hard to recommend a specific one. Some games, we do not have confirmed release dates on, which is a similar situation for many games...We can only speculate.
Back from the dead, I'm afraid.