We've known about the new IP for awhile now, I expected more from a more recent article but this doesn't offer much, but what Miyamoto said a while ago was all the new IPs Nintendo have made, like Nintendogs, they didn't have a main character to it. Zelda has Link, Mario has Mario ofc, etc. But all the new Nintendo stuff has been just general games. And Miyamoto said he was making a new IP which
does have a main character, story, and stuff.
Definitely something to look forward to, and about time! With new IPs like Watch Dogs and Last of Us, I hope Nintendo can match.
I've not got that much confidence from Ninty atm but I still adore ol' Shiggy, I hope he'll brew up something awesome.