Super Mario 3D World - Don't this will ever get ported, personally.
Xenoblade Chronicles X - Would be hard as the gamepad had a huge secondary application in this game that the Switch can't do.
Super Mario Maker - No cause SMM2 will be on Switch, IMO.
Zelda WW / TP - Both, one 2019 and another 2021 (2020 will be an HD Zelda new game like Between Worlds).
Pikmin 3 - Wasn't Pikmin 4 supposedly completed a long time ago and they pushed its release back? Not sure why'd they'd bother with 3 if they can release a new game.
Other - Possibly Paper Mario Color Splash in order to further justify making more Paper Mario games? It sold way less than the other games. I don't want another Color Splash/Sticker Star, but I'd rather have one of them than no Paper Mario at all. I NEED PM!
No Wii U port anymore - I think 2019 and probably 2020 will still see Wii U ports, but after that I think they will be done.
I don't really agree with most of them. If Nintendo bothered with a port of New Super Mario U, there's no real reason to not port 3D World, even if it is just to fill a gap between releases. Xenoblade Chronicles X can be made to work without the gamepad, plus Nintendo probably spent too much into that title to just let it alone with barely 1m sold, and the same could probably be said about Pikmin 3. I agree with SMM, they will make a sequel that adapts the lack of a gamepad, while also pushing handheld map creation.And I'd rather have Nintendo focus on other franchises rather than keep releasing Zelda remakes. At least remake the 2D ones!
And we also should take into account the 3rd party ports: SMT x FE could release on the Switch, it's easy money at this point, especially if SMT V does well. The Wonderful 101 has gotten too much teasing to not come, the only reason it's not out already is probably because Platinum has been busy with other titles.