Sumo Digital is very busy these days, as not only are they responsible for bringing Dead Island 2 back on track, but they're also developing the single-player portion of Crackdown 3. However, if a new rumour is to be believed, these aren't the only projects they have in the works, as apparently they might also be working on a karting game.
A ResetEra user called 'Dr. Caroll' has published some alleged leaked presentation slides, which seems to shed some light on the company's upcoming projects, and in here we see the mention of an "unannounced karting game", which is based on an established global IP. This wouldn't be the first time the studio has worked on a karting game established on a known IP, as Sonic & All-Stars Racing Transformed and LittleBigPlanet Karting both did well, so hopefully this will also be a hit if the rumour is to be believed.
Still, there's no way to confirm its legitimacy, so take it with a grain of salt for now. Is this something you'd like to be true though?