I read the first page of posts and of course this has already de-evolved into a simple MS bash fest........
that being said obviously COD BO2 and Halo 4 will be shown as well as a bunch of Xbox Live and Kinect stuff.
But I honestly expect MS to announce at least 2 major exclusives, whether they're 1st party, 3rd party, or next - gen games.
I think they should have a pretty solid E3.