Donkey Kong Country: Tropical Freeze is a decade old now, and with developer Retro Studios busy with Metroid Prime 4, it doesn’t look like the 2D platformer is going to get a follow-up anytime soon. Interestingly enough, however, if things had gone differently, the acclaimed sidescrolling platformer may have been succeeded by a new 3D entry- and one developed by an external studio, no less.