I dont think Zelda U for NX will have graphical improvement in comparison with Wii U version, but I think NX version will have some additional features.
Saying that if I buying NX on launch I will probably go for NX version, in case I dont buy NX on launch Wii U version will be day one.
In case I am wrong and NX version has graphical improvements, it's almost certain I will buy NX on launch with Zelda NX.







