Calling it right now, whatever your sales predictions are, lower them x10 and you won't be far off.
Why on earth would they release a sequel to a game that had nothing to do with Nintendo's platform? This will likely go multiplat, no way they can continue their relationship with Nintendo and the failing Wii U. I for one wouldn't buy it even if I planned on getting a Wii U. It's a slap in the face for the fans.