At this point, whatever they´re working on is probably for the NX.

Not all games are ready for a reveal in two years, guys. The NX launch is neither here nor there if the game is big enough to not be ready to show in a couple of years. Their silence actually gives me hope that what they are working on is really big.

DKC Returns and Tropical Freeze were first announced within 6 months of the games planned launch so we should expect any news from them until their next game is close to completion.

Probably making Diddy Kong Racing.

Honestly, wouldn't be surprised if they haven't been working more on middle ware for some of the other Nintendo development teams, while trying to bring a new title down the pipe. Seems like every team at Nintendo except the one working on the next Zelda console game are always doing that.

Maybe they started their project on Wii U and moved it to NX...

Metroid Prime 4 for their next console launch.

Whatever they're making, I hope it's for the nx, and, whatever they're making, I sure as hell hope it isn't Diddy Kong racing.... if it is, I will be super pissed. Fuck Diddy Kong racing, make something good. We already have mariokart.

Federation Force.

They took six million years just to make a sequel to DKCR. I don't expect to see their next game until 2059.