They have said that they are making free to play possible on WiiU (I think that was also at GDC) including support for microtransactions. There is already a game on the eShop like that for 3DS.
They mentioned it again during the last Financial Q&A aswell.
There`s already one game for Wii U. That pinball game. I just want to Nintendo using the time they have left before PS4 and X720 to really start positioning Wii U - and 3DS too - as the console of choice for that kind of games.
They are already in a good position with Indies. Got to take anothe step in that direction!