From what I understand, hasn't Nintendo said multiple times that they're making a new franchise? This will most likely be something that ends up on the Wii U.
I do believe that they need to cover areas that they don't already though. Action, FPS, and more older demographics-oriented games to broaden their fanbase and increase their overall variety.
Edit - Found it
http://www.eurogamer.net/articles/2013-07-10-nintendo-is-working-on-a-brand-new-franchise







