Along with Watch Dogs, Ubisoft will also be bringing Child of Light to Wii U.
The list of upcoming indie titles is actually pretty diverse. In addition to the games that coolz481 mentioned, there's also the Oddworld remake, a port of Q.U.B.E., and a really creative Mario Galaxy-meets-Super Monkey Ball indie game called Armillo. I had the chance to try that last one at IndieCade a month back and it's really fun.