Update: It turns out this is fake and originated from GameFAQS. Guess we shall have to wait and see which tracks are announced by Nintendo
Judging from the system files that have been unearthed in Mario Kart 8 it would appear as though we may know two of the tracks that will be included in the upcoming Animal Crossing themed DLC. The fan favourite Baby Park from Mario Kart: Double Dash would appear to be one of them as well as Neo Bowser City from Mario Kart 7 on the Nintendo 3DS. Guess we shall have to wait and see!
The following are the ones we got:
- GC_YOSHI_CIRCUIT = GCN Yoshi Circuit
- SFC_RAINBOW_ROAD = SNES Rainbow Road
- WII_WARIOSMINE = Wii Wario’s Gold Mine
- WU_DRAGONROAD = Dragon Driftway
- WU_EXCITEBIKE = Excitebike Arena
- WU_HYRULE = Hyrule Circuit
- WU_ICEPARK = Ice Ice Outpost
- WU_MUTECITY = Mute City
And these are the ones listed but we never got:
- 3DS_NEOBOWSERCITY = 3DS Neo Bowser City
- GC_BABYPARK = GCN Baby Park
- WU_ANIMAL = Animal Crossing
- WU_METRO = ?
- WU_WOODS = ?