So regarding that potential possibility of seeing animated adaptions to other Nintendo properties. These are my opinions on the matter.
TLoZ and Kid Icarus I think would work better as animes. Kid Icarus especially given that anime-like style cutscenes in Uprising as well as Palutena's Sm4sh reveal trailer which feels it went to waste when they could easily make that an anime series.
Metroid I think would work best as a Primal/Samurai Jack style cartoon where there is mostly no dialogue from Samus and when its just her mostly silence.
StarFox I think would work great as a NetFlix-exclusive animated series. Don't know why but it just gives me that feel of being NetFlix exclusive.
Kirby, Splatoon, and maybe Donkey Kong have what it takes to be full-length featured animated movies. Splatoon especially, not sure if I'm the only one but when I look at Splatoon, it looks like something straight out of DreamWorks who I think should be the company to do such an animated adaption to it.