Miyamoto's new IP, perhaps? Monolith's next game (Xenoblade is amazing, after all)? A potential new IP from Retro?
yeah, man... i totally forgot about Monolith for some reason. just the thought makes me stoked for the future. and I'm DYING for a new Retro IP!
They need games that make 14 year old boys feel like they own the world and are special and can blow things up.
That's for today's "hardcore gamer".
The rest of us just want a fun game.
yes, yes, you're clever in your satire

I doubt that you yourself have criteria as simple as "a fun game"... right? I mean, what kind of game do you like to play? What would make you run out to buy a new console that you hadn't planned on purchasing already?
I just think that, if Nintendo wants to reach a broad range of gaming enthusiasts, it will need "fun games" of both the endearing-characters-in-charming-environments-trying-to-solve-engaging-puzzles variety, as well as the intense-sci-fi-ownage-with-big-explosions-and-stuff variety.