It seems like forever since we heard that Pikmin 3 was confirmed to be in development. And while the title was originally intended for the Nintendo Wii, Miyamoto revealed during their E3 round table this year that the title has been moved to Wii U. While he doesn’t give any specifics, he does say that the title isn’t as far off as we might think. He feels the HD graphics and screen controller are perfect for the title.
It sounds like the title could be a potential launch title, but I wouldn’t count on it until we get closer to launch. Apparently the title wasn’t intended to be mentioned at the round table, but Miyamoto felt like announcing it. And he is Miyamoto, so he can do whatever he wants.