If they make Diddy Kong Racing they need to ditch the 3 types of vehicle mechanic and make cars that have special animal transformations. It would make a lot more sense for the DK universe. Also give it a quirky story mode to set it apart from MK. And call it Donkey Kong Racing because fuck Diddy. Oh and the race cars would have a more natural/organic look (like a mine kart or bamboo race car).
Not that I think Retro is making DKR.