ToxicJosh on 19 March 2015
Depends on WHAT NX is; if it's a home console, or a fusion device, or something that is designed to occupy that console 'space', then 2015 will definitely be the last Wii U focussed year (2016 may have 1 or 2 swan song games for it).
If NX isn't replacing Wii U (it may not do...), say if it's a handheld, or a tablet, or even a phone. Then Wii U support will continue until it's obsolete.
That said; I wouldn't be that surprised if NX was the mystical fusion device, and was released late 2016 (reveal press conference early 2016, blowout E3, launches November - especially if handheld comes first, then the hub a couple of months' later)
