My thing is that I worry that won't last for much longer. I think the Wii U's lack of success kind of showed that, as the initially intriguing Wii got inconsistent support, and people started to see Microsoft and Sony grow social gaming really well, while Nintendo completely resisted it. The worry is that if Nintendo doesn't get itself together for this NX release, then the Wii U might not be the home console division's low point. If all they do is release rehashed and half-assed stuff like Mario Party 10 and Animal Crossing: Amiibo Festival (where the latter is basically an improved version of the former), and the company just starts coming off as an amiibo cash grab, it could get worse.
Of course, it's hard to tell if Nintendo can even do better with the NX right now. It doesn't feel like they're holding back games for the NX to get a quality group of launch titles when its time comes. Given the slow trickle of titles on the Wii U, the NX needs a way to improve upon that. Nintendo seems to have always been a developer to take its time with games, worry quality almost to a fault, as we see long gaps between releases in franchises. Think about if the NX releases, and Nintendo's still in the early staged with Mario Party, The Legend of Zelda, Star Fox, Mario Kart, and Super Smash Bros. They could be lacking software to support the console, leading to another Wii U mess. And if they go and make the NX backwards compatible, they might get themselves stuck in the past, unable to truly advance their hardware to a better place because they're trying to rely on the Wii U library to entertain people (which, of course, gives people less of a reason to upgrade from a Wii U to play the same games on a new console).
It's hard telling what exactly Nintendo's going to do. They need more developers, it feels like. They might make money on their hardware, but barely skating by with minor profits at the expense of a massive number of sales would be a sad existence for a company with some of the best, most-polished software in the industry.