As of right now he has no interest in the Wii U. He’s specifically said that for his current projects, including Rising, he hasn’t even thought about doing Wii U versions or ports at all. He’s a real pusher for power, so I don’t see him supporting the Wii U considering how much slower it really is compared to PS3 and 360.The tablet controller is nice and all, and brings some interesting possibilities for gameplay, but releasing a console that is supposed to be next-gen, yet is slower than current gen is never a good idea. I really see this backfiring on Nintendo. I mean they will still get some 3rd party support for exclusives, but for multiplats I see it being left behind next-gen. Developers are already complaining about PS3 and 360, and that they have done all they can with current gen and that they need new, more powerful consoles, so I see the majority of them skipping the Wii U.
See more here: New Fox Engine screens