The Switch 2's mouse controls would be perfect for a Mario Paint revival, and if Nintendo ever does decide to do that, they should reuse features from Mario Paint, Mario no Photopi, Mario Artist (Paint Studio, Talent Studio and Polygon Studio) and maybe even Mario Maker.
Oh, and it probably won't happen anytime soon, but I'm also kind of hoping Nintendo will do a revival of Talent Studio, with Miis as an additional feature along with the customizable characters from the original game.
Oh, and it probably won't happen anytime soon, but I'm also kind of hoping Nintendo will do a revival of Talent Studio, with Miis as an additional feature along with the customizable characters from the original game.