Remember Bowsette? The viral fan-created character combination of Bowser and Princess Peach was one of our moments of 2018. But Bowsette was only ever a fan-creation – and despite Nintendo fans’ hope she’d someday be made canon, Bowsette will stay that way.
In September, Nintendo introduced a new power-up item into New Super Mario Bros. U Deluxe called the Super Crown. This transforms Toadette into a Princess Peach version called Peachette.
Bowsette is based upon the potential for any character to use the Super Crown to morph into its Peach form. Well, according to Nintendo, the Super Crown can only be used by Toadette, which scrubs Bowsette or any of the other (disturbing) fan creations from potentially becoming canon.
Source: Eurogamer Nintendo pooh-poohs Bowsette