I don't really know what anyone is doing, but I would expect that using projectors with a next generation console would be something that was used along with the TV. In my opinion, the more interesting use would be to project images onto the ground giving something for people to interact with in the real world when playing games that track motion using cameras ...
With that said, last generation there were hundreds of rumoured "leaked" controllers for the "Revolution"; and, while some seemed to have some of the features that the Wiimote eventually had, none of the rumours were particularly accurate. While I have little doubt that someone might hear details about what Nintendo is doing, I think that their understanding is going to be amazingly limited; and their leaks will be about as accurate as the mock-ups from the previous generation that focused on motion controlls.
