It may be the Year of Luigi, but Mario won't stay out of the spotlight. The lesser Mario brother will be showing up in Mario and Donkey Kong 3D on the Nintendo 3DS eShop. Mario and DK 3D looks to drastically alter the series yet again. Going from the puzzle platforming of Donkey Kong 94 on the GB to just Lemmings style puzzling in March of the Minis, now you'll be laying down tiles to create a path to the goal for the minis.
It sounds a bit like March of the Minis, however it's very different. Take a look at the official Nintendo UK youtube video announcement: