I bought the Wii U mainly for Zelda, but seeing as it will be on NX I won't even bother with the Wii U version anymore, I'll just buy the NX one.

"However, I think that we no longer need this kind of effort under the current circumstances. In this perspective, while we are only going to be able to start this with the next system, it will become important for us to accurately take advantage of what we have done with the Wii U architecture. It of course does not mean that we are going to use exactly the same architecture as Wii U, but we are going to create a system that can absorb the Wii U architecture adequately. When this happens, home consoles and handheld devices will no longer be completely different, and they will become like brothers in a family of systems."

- Iwata March 2014

https://www.nintendo.co.jp/ir/en/library/events/140130qa/02.html

Wii U

Both.

Eventually anyway, at first for WiiU. We'll see when I'd get the NX version, just like with TP. If it were any other franchise I wouldn't even entertain the idea, but when Zelda is concerned all my usual rules go overboard.

Probably both but I'll get the Wii U version first as it will probably be worth more monetarily in the future. I'll get the NX version when it's a Nintendo Selects release.

WiiU

I'm not going to buy a new console for a game that I can play on a console I already own.

Depends whether or not NX is a hybrid console or not. If it is, then I will be getting it because I always get Nintendo handhelds. If not, I will wait until it gets games and just buy the Wii U version.

Wii U

The only confirmed version so far is the Wii U one, and that's the console I have.

Also, since I won't buy NX at launch, there's only one option for me.

If I have money when NX launches, I'll buy the NX version with the console. If not, WiiU version. Also, it depends on how the gamepad is used on Zelda U and if NX keeps a similar controller.