I dunno.. I suppose i'm an optimist but looking at the sessions there seem to be quite a few on game development the point update on directx that even has its own session is also puzzeling, they usually don't talk much about DirectX.. i'm guessing the new version is what xbox uses.
There are only two sessions explicitly tagged as xbox (still that's two more than ever before) but I think Microsoft will push for a single "windows" for phone, xbox and pc, so there might be something
as for the length of the conference, its been three days for a long time, so i'm not sure that's any indication of content and there might still be sessions that they haven't added, again I suppose i'm an optimist
we'll see soon