http://www.gameinformer.com/b/features/archive/2011/07/06/the...
Its an Older Interview from july explaining how they got the game running on Wii U. They had a Demo up and running in acouple of weeks for Nintendo but it was decided not be shown at the show.
Now i'm wondering and why Nintendo decided to scrap the Third Party stuff. I'm guessing it wan't as polished as they wanted or time constraint because of the Zelda event.