I wanted to post a poll, asking what would have been the lifetime sales of the Wii U if Nintendo had tried to push the console until the end of this generation, with a more powerful Switch only arriving in 2019-2020.
I would say 30-35 millions. Every current games that the Switch has today would have run easily on the Wii U with just a bit lower resolution.
Current PB on Secret of Mana remake : 2h27 (2nd)
Strongest worldwide achievement on TGM : 1st European S13 rank
Fastest TGM3 MASTER in Europe : rank Master V in 5min10
Western record on TGM3 EASY : 1484
Current PB on Power Ranger (Game Gear) : 10min06 (World Record)
Non-geek activity : ThermalHungary