Will 2015 E3 be the last Wii U-focused E3 for Nintendo?

[WhiteEaglePL]

Materia-Blade said:

WhiteEaglePL said:
I see it this way and I'm confident it will happen:
2016 3DS NX successor reveal.
2017 NX successor released first half.
2017 NX Home (wii U successor) revealed.
2018 NX Home released.


Done. I would be happy owning a U for 5 yrs.

I see it going like this.

2016 3DS NX successor reveal and release 
2017 Wii U successor reveal and release.

Why?