Either a new Paper Mario that was more like the old Paper Mario games, only with some cool new ideas and keeping with an art style similar to Colour Splash, or I'd love to see a game with Waluigi in it. Something taken seriously, like the Wario & Waluigi equivilent of Mario & Luigi series. They could put so much humour in it and have a great "accidental hero" storyline I reckon.
Or a Wario Land game for switch that was more like Wario World and less like Shake It.
Or a Wario Land game for switch that was more like Wario World and less like Shake It.