The following news comes from Spanish newspaper, El Mundo...

"Miyamoto, who smiled during all the interview - even when he wants to change the topic because 'it's not the moment' to talk about Wii U - thinks that the experience and the new game modes of this new console won't be 'easily replicated in other devices', which will allow them to escape the new tablet competition. The creator advances that at the next E3, the biggest video games show, which is celebrated in Los Angeles in June, Nintendo will present a new Super Mario for this platform, in which you will combine the TV screen with the screen in the controller."
Believe it or not, Nintendo actually confirmed this news!

"In a recent interview, Mr. Miyamoto confirmed that a new Super Mario Bros. game for the Wii U system will be shown at this year's E3 Expo," a Nintendo spokesperson said. "We'll have more to announce about our plans for the E3 Expo at a later date."

Miyamoto also confirmed that he's working on a number of projects, including Pikmin 3 and Luigi's Mansion 2.

"I'm working on several projects but I think that I cannot talk about them all [laughs]. Some are small but important projects for Wii U. Also on a new Pikmin, which will take advantage of the new HD screen resolution, and on Luigi's Mansion for 3DS."

Thanks to all that sent this in!