Amazon actually has what might be the covers for Wii U games. Assassin’s Creed III and Marvel Avengers: Battle for Earth‘s covers both have yellow curves, with a blue border above and the Wii U logo. These may very well be placeholders, so don’t completely freak out just yet.
We’ll keep you updated as more info comes in about the Wii U. Until then, you can check out Amazon’s boxshot of Assassin’s Creed III for yourself here.