Too Long; Didn't Read
Mario Kart 9 is expected to be released in Spring 2023. No official release date or vague window has been given, but there is plenty to speculate. Rumors hint that the game will have a “new twist” Nintendo is working on a sequel to one of it’s best selling games. There is no official trailer or even teaser for the game. Nintendo has opted for digital-only Nintendo Directs to announce new content, so this is likely where we will get to see anything regarding the sequel.