Speculation. It's weird that people are acting like Mario is insufficiently represented on Switch when there have been two new mainline Mario games and a port with a brand new campaign. I don't know why Nintendo would release a new 2D Mario game now—in the Switch's sixth year on the market—when they could easily save it for the next system. The idea that they need to "capitalize on the movie hype" when the movie has already grossed over 1.3 billion dollars without any cross-promotion is a bit silly. People like Mario. People will always like Mario. Meanwhile, Donkey Kong hasn't had a new game in almost ten years and Nintendo is supposed to be opening a Donkey Kong theme park expansion in Japan next year, with a rumored movie on the way. Now would be a good time to start revitalizing interest in the brand, no?