Donkey Kong Country Returns developer Retro Studios isn't returning for the 3DS remake, Donkey Kong Country Returns 3D. According to the Australian Classification Board, the game is being developed by Monster Games, the studio behind 3DS launch title Pilotwings Resort.
That leaves us with the question of what exactly Retro Studios is up to these days. Last year, Zelda creator Shigeru Miyamoto sparked interest in the possibility of Retro handling a new Zelda game, though he later said that the studio is "too busy for that sort of thing." Apparently, it's also too busy to port Donkey Kong Country Returns to 3DS. So, in the hope that we can just will it into existence, we're going to assume Retro is hard at work on Metroid Dread for the Wii U.