Microsoft have been a bit conservative towards the tailend of this generation opting out of establishing new IP and banking on the popularity of Halo, Gears of War, Fable and Forza for most of their first party output. That may be about to change as CVG reports on the LinkedIn profile of Microsoft Game Studios' Jonathan Browne.
In his profile Browne explains that as a senior product manager and planner at Microsoft he has worked on four original IP's "from the very early concept phase through green light to production".
Hopefully we'll hear more of Microsoft's next gen plans soon.