The Spanish Official Nintendo Magazine could have accidentally revealed a new Mario Kart 8 character.
Diddy Kong appears in a preview of the game made by this Spanish magazine along with other confirmed playable characters. The hypothetical addition of this new challenger would make sense, in fact, the ape was the obvious star of Diddy Kart Racing for Nintendo 64 and Nintendo DS.
Nintendo has not yet confirmed this info, although it seems to be just a matter of time.
Via | NintendoEnthusiast