The then-unreleased Wave 2’s Turnip Cup, for instance, was shown to contain four tracks taken from Mario Kart Tour, SNES, N64, and DS, while Propeller Cup listed tracks from Tour, GBA, Wii, and a final, yet to be defined course.
By my reckoning that means there’s still ten Tour tracks to come, four Wii tracks, four GameCube tracks, two 3DS tracks, two DS tracks, three GBA tracks, and one SNES track, with the remaining six unclear.
Wave 4, meanwhile, will likely feature another three Tour tracks, plus tracks from Wii, DS, GameCube, GBA, and a final mystery addition.
The final track listing for the Turnip Cup is New York Minute (Mario Kart Tour), Mario Cart Circuit 3 (SNES), Kalimari Desert (N64), and Waluigi Pinball (DS), while the Propeller Cup brings Sydney Sprint (Tour), Snow Land (GBA), Mushroom Gorge (Wii), and Sky-High Sundae (Tour).