A sequel on Switch would be amazing. Though, I guess technically we already have two games in the 3D lineage.
Maybe they'll go 3D Land -> 3D World -> 3D Galaxy?
Yeah, I always forget what was released on Nintendo portables. I never played much and never owned a dedicated portable. That is the perhaps the best thing about the Switch. I get my home console, and the few times I want a portable console, I have one.