Thanks for all your feedback regarding Rayman Legends in all of its forms. We have heard you and we will continue to listen. We understand your frustration and that you want to get your hands on the game.
We are working with the development team to provide you with a new, exclusive demo for the Wii U soon. Stay tuned for more.
This seems like such an utterly useless offer that one wonders why Ubisoft is even bothering. If you're going to tell Wii U owners you don't care about them, why then make a gesture that in no way says otherwise?
As one commenter notes, they'll probably later announce that the demo has been delayed so it can be released on all platforms.