In an AP interview yesterday, Mr. Miyamoto was asked about the new Star Fox game. He responded to say that the game would feature new kinds of gameplay only possible thanks to the set of two independent screens the Wii U provides.
AP: You're personally working on a new "Star Fox" game now. It feels like a long time since we've seen Fox piloting his Arwing. What's he up to now?
Miyamoto: I like to create gameplay mechanics more than I do stories. The story might not be too different from past "Star Fox" games, but the gameplay mechanics are going to feel very different because of the two-screen system of the Wii U with the GamePad and TV screen. It'll make for a very fun and unique way to play.