The controversy continues. Developers currently seem to be in a love-hate relationship with the Wii U. Some say next-gen, others say current-gen.
Either way, Nintendo seems to have managed to get by well enough with mainly first party games with the Wii, so maybe they can pull it off with the Wii U as well. Fanboys will buy in either way. As for 3rd party support once the 720/PS4 come in, I'm skeptical but we'll have to wait and see.