I have Datamined A MK8DX Booster Course Pass Track.

it did kinda look like Mario Circuit 2.

Found of the twitter threads about the datamine.
The recognizable tracks(remember, this could easily have a couple wrong tracks) are:
Sydney Sprint, Los Angeles Laps, SNES Mario Circuit, Wii Koopa Cape, 3DS Rainbow Road, SNES Vanilla Lake, New York Minute, Wii DK Summit, Wii Maple Treeway, GBA Sunset Wilds, Merry Mountain, Vancouver Velocity, GCN Dino Dino Jungle, GCN Waluigi Stadium, 3DS Bowser's Castle & 3DS Shy Guy Bazaar.
Oh, & the Ice Cream track of course.
I know I'm probably missing a few/placed some that aren't, but that's all I can find right now.
EDIT: All Tour tracks are a given anyway, also Delfino Square apparently? Idrk anymore, this things got me confused.

oke

i might as well lock this topic.. sorry if yall didnt get the chance to talk on ther before i locked it.