I thought I heard something about that. But I think we have to wait until Japan gets the Wii U version to know for sure (I’m pretty sure Japan is getting the Wii U version before us)
Not that it matters to me. No way I’m using the 3DS controls for the Wii U. Gamecube controller, all the way! I have a controller that I had ever since I first got a Gamecube, and it still works perfectly. To use that for the new Smash when I’ve used it when Melee was new, and when Brawl was new will just be the best ^^