I was going to make an E3 thread but thought it would be best to wait until a week before E3. Otherwise it ends up sliding down off the first page.
I've read of two things that are rumoured to appear at E3 this year. One is a "slim" style 360 that comes bundled with Natal and the other is a resurrection of an old game series...
I can't remember where I read that, though. It was a few weeks ago and it's just rumours.
Edit: Lionhead are working on another "secret" game so they'll be showing Fable III, Milo, some Fable III related XBLA game (like Pub Games was to Fable II) and whatever the secret game is. I'm hoping it's either B.C which was like an open world caveman game that was cancelled or a Black & White Game for the 360 to use with Natal.