Donkey Kong Country Returns 3D will be released on May 24th 2013 in America announced Nintendo via Nintendo Direct. As previously reported, the game is an updated version of the Wii modern-classic, that has been remastered to take full advantage of the stereoscopic 3D graphics of the 3DS.
This really makes the game pop and makes the jumping from the foreground to the background and other perspectives much more pronounced. New additions will include an Easy Mode, and a couple of other things. More soon.