Weird comment considering Nintendo has made it clear this is not a Wii/Wii U follow up and they have also made it clear that the shift of the Wii U away from chasing the casual audience was because most didn't transition to core games and because they were losing the audience who would move on to the next thing, like mobile gaming. Not only that, but the family audience is something they have always targeted, a fact that has also hurt them in other ways.
What I think it might mean is that UbiSoft feels confident about the hook of the NX, even if Just Dance is hardly a risk on a Nintendo console, since it is both successful and cheap to make. Seems like motion control will continue in some form but I doubt the hook is related to that, but possibly as exciting as that and that is what the Wii comment means; it will be a gimmick that is immediately recognizable, exciting, and affordable. So basically not VR, but it also doesn't mean it's necessarily input related. A hybrid sort of concept executed well and affordably can be easily understood, easily marketed, and appeal to a wide range of people.
