Mario vs. Donkey Kong is a prototype tech demo made specifically for showcase at GDC, so chances are this is not a game that we'll see in the future.
However, there's been no confirmation that it's NOT in the works as a full title. Check out the video below to see the very cool demo.
3 news items
The Nintendo GameCube: An Interesting Legacy
Will The Wii U Have a Similar Fate?
Project Ukulele - Possible Hint at Characters
Could it be?
Free to Play Pokemon Shuffle now available on 3DS eShop
Nintendo offers another micro-transaction based title
Gold Mario Amiibo is a Wal-Mart Exclusive
Get ready to shell out your coins
Area Effect Announces Izle for Wii U
Part action, part adventure, all cel-shaded
Nintendo Confirmed As Sponsor For APEX 2015
Another positive step for the Smash competitive scene
Majora's Mask 3D Collector's Edition Contains Skull Kid Figurine
Pre-orders are now open!
Ackk Studios Rings in the New Year with New Y2K footage
Starting the New Year with a bang!
Is Nintendo Making A New Wii U Gamepad?
Recent commercial may have leaked new GamePad model
Zeldathon Relief Announced
Pot smashing for a great cause
Wii's World is not officially affiliated with Nintendo! (but they wish we were).