Nintendo have listed the tracks that will be available in the forthcoming DLC for Mario Kart 8.
The new Wii U exclusive tracks that will be available when the update goes live on 23rd April are;
– Nature Road
– Big Blue
– Lingling Metro
– Animal Crossing
Plus there are some new classic retro circuits, rebuilt for the Wii U;
– Baby Park (GameCube)
– Ribbon Road (Gameboy Advance)
– Neo Bowser City (3DS)
– Cheese Land (Gameboy Advance)
In addition, there are three new characters; the Villager and Isabelle from Animal Crossing and  Dry Bowser, plus four new vehicles to rude the Bone Rattler, Streetle, City Tripper and P-Wing.
Check out the video below to see the new Animal Crossing track in action.