"Next November marks the 10-year anniversary of Microsoft's entry into the console market and to celebrate, they seem to have an amazing line-up set to go. The big game announcements haven't even begun, but from what I know 2011 should be a killer year".
http://xbox360.ign.com/articles/113/1138527p1.html
Probably expect something at the Spike VGA's and probably some stuff at GDC and that leads up to E3.
Just want to play good games