Dat shameless self promotion though.
I expect something big tbh, if they just make some endless runner or a game that has been done to death it's going to be ignored.
Given that Konno's in charge of mobile I'd expect a franchise that he's familiar with, yet at the same time isn't a big Nintendo franchise, I'm honestly expecting something in the vein of Nintendogs with some kind of AR functionality, if it is of a big Nintendo series then I'd be betting on something Yoshi related.
I wouldn't expect Nintendo to start with Mario or Pokemon, if it isn't what I mentioned before I bet on Animal Crossing.