I still wonder how the Wii Mini would've fared had the Selects program not been dead when it appeared and Nintendo had done several further rounds at that time like Super Mario Galaxy 2 to coincide with its launch and opening months on the market.
If they don't have backwards compatibility and the NX is a hit, I kind of hope that they consider ports down the road of some of the Wii U's best content. Several titles here like Super Mario 3D World certainly could've sold many millions more copies, had Nintendo gotten the hardware into more homes.
I just hope that they're not too upgraded since I'll be tempted to buy the NX versions, too. And don't rely on last-gen ports, regardless of quality, to the same degree that the XB1 and PS4 did to prop up their lineups. Only now does it seem like the focus there is on original content instead of prettied up ports.
Nintendo actually got that part right with the Wii U with its sparing use of remasters. If anything, it could've used a few more like Metroid Prime Trilogy HD.