During today's European Nintendo Direct broadcast, footage of the game was shown during a segment intended to highlight the various games already available for Nintendo systems, and those on the horizon.
It was only a short clip, but this is the first official confirmation we've had that the title is indeed coming to the Wii U. It's been a long wait for Nintendo fans, but it's finally over.
The clip is shown below. Skip to the 2:15 mark to see Meat Boy do his stuff.