Based on this interview with Shigeru Miyamoto posted by a Spanish gaming website:
http://www.elmundo.es/elmundo/2012/04/16/navegante/1334559905.html
He also reconfirms Pikmin 3:
Well there you have it, new Mario game coming to Wii U, read all about it! Looks like Nintendo knows where the money is...
http://www.elmundo.es/elmundo/2012/04/16/navegante/1334559905.html
Nintendo will launch a new Super Mario for this platform[font=Arial, Helvetica, sans-serif] , which will combine the TV screen with the remote.[/font]
He also reconfirms Pikmin 3:
also a new 'Pikmin', which will use high-resolution images of the console
Well there you have it, new Mario game coming to Wii U, read all about it! Looks like Nintendo knows where the money is...