Jet force Gemini 2 from Rare. Jade Empre 2 should be Microsoft. Fable 3 could be announced by Lionhead developer Peter Molyneux as being due out in 2010.
Maybe Bungie announces Halo 4 due to be released in 2010. A main Halo game is launched every 3 years and follows the trend Halo:CE (2001), Halo 22004), Halo 3(2007), Halo 4 (2010)?
Halo 3:ODST is DLC but should add more to Halo 3. Halo Wars well it is not a FPS and I do consider it to be in the same class as the Halo trilogy games.