Thanks to the handful of great games I've played recently, the WiiU has already become a worthwhile purchase for me. So from my perspective, the WiiU doesn't need to "turn around", Nintendo just needs to continue giving me good games for it. Of course, I've got other consoles to fill in the gaps, otherwise I wouldn't feel this way.
It surprises me how much talk there was around here about the WiiU being a reasonable holiday purchase, now a month later the OP is being ridiculed for having a positive outlook. I can understand the skepticism to a degree, but this is NINTENDO. They still know how to make good games, they have a wealth of IP that got in at the ground floor of our childhoods, and they have a large cash reserve. I believe there are still some good brains over there in Kyoto, and I hope to at least enjoy some fun first-party titles over the next few years, at the very worst.