I don't think Kinect is mainstream, at least not anymore. Sales are horrible for that.
Mainstream = CoD, Madden, GTA, yadda. Neither Sony nor Microsoft really have massive 1st party IPs anymore if the decline of Halo, Gears, God of War, etc seem to indicate. Even Uncharted would be hard pressed to top previous entry sales.
http://en.wikipedia.org/wiki/List_of_best-selling_Xbox_360_video_games
Kinect is only on there due to the pack in game. People are DONE with Kinect. It's niche, uncool, unhip, basically hated today. Ditto Move, Wii motion controls, and all the other gimmicky garbage. They're as dumpster-material as the endless stacks of Guitar Hero and Rock Band plastic guitars and crap.
But yeah, I expect them to announce some semi-obscure titles that haven't seen sequels for 10+ years that will excite small pockets of people but won't sell more than 1-2M even on the very best chances imaginable for XB1, and may even bomba out way worse than that. People have short memories and almost zero loyalty. Similarly, wasting money bringing 90s Sony IPs back is almost certainly a waste of time as well. At most they should be indie/F2P kind of projects.







