The Wonderful 101, a Pikmin-esque action game from Platinum Games for the Wii U, was just announced during Nintendo's European Wii U event. As it so happens, The Wonderful 101 is actually the official name of Project P-100, which was originally announced back at E3.
In the brief trailer shown, players were shown controlling a large group of superheroes via the WiiPad, which could then combine into larger creatures to wage war with a seemingly invading alien race. As it did back in June, the game had a distinctly Viewtiful Joe vibe to it and seemed quite lighthearted.
Update: The official trailer has been added above for your viewing pleasure.