If next official Mario Kart could have any character that you want in official way, but from Super Mario franchise, from Nintendo franchises or/and Nintendo videogames consoles videogames, what would are those characters for next official Mario Kart?
Honesty, I'm not sure. I feel like every main Mario character I want got added in and the Wario characters may feel out of place. Maybe give King Boo a Lugi's Mansion skin option ?