Mario Kart 9 Wants Updated:

Rule:
- No base game 3rd Party characters

Mushroom Cup (specifics: meant to be mostly Retro only. No anti-gravity, no underwater, no gliding. Easy tracks.)

+ Luigi Circuit (NGC)
+ Moo Moo Farm (N64)
+ Donut Plains 1 (SNES)
+ Kalimari Desert (N64)

Flower Cup (specifics: meant to be mostly Modern only. Anti-gravity, underwater, and gliding. Easy tracks.)

+ Mario Kart Stadium (WiiU)
+ Coconut Mall (Wii)
+ Toad's Factory (Wii)
+ Cheep Cheep Lagoon (3DS)

Star Cup (specifics: same as Mushroom Cup. Medium Tracks.)

+ Mushroom City (NGC)
+ Waluigi Stadium (NGC)
+ Royal Raceway (N64)
+ Koopa Beach 1 (SNES)

Lightning Cup (specifics: same as Flower Cup. Medium Tracks.)

+ Sunshine Airport (WiiU)
+ Koopa Cape (Wii)
+ Airship Fortress (DS)
+ Maka Wuhu (3DS) {Origin is Wii Sports Resort, but there's also Wuhu Town made as an original Mario Map so I'm counting this here}

Special Cup (specifics: Harder tracks. Mixture of Retro and Modern.)

+ Wario Colosseum (NGC)
+ Rosalina's Ice World (3DS)
+ Ghost Valley 3 (SNES)
+ Shroom Ridge (DS)

Rainbow Cup (specifics: Rainbow Roads only)

+ Rainbow Road GBA
+ Rainbow Road NGC
+ Rainbow Road DS
+ Rainbow Road 3DS

Castle Cup (specifics: Bowser's Castles only)

+ Bowser Castle 2 (SNES)
+ Bowser Castle N64
+ Bowser Castle NGC
+ Bowser Castle 3DS

9 Cup (specifics: new or remade courses)

Remakes:
+ Waluigi Casino (a course that contains jumps that goes from different casino-like objects. Waluigi Pinball takes a cameo here alongside the Luigi Card Game. Consider this a remake. Will be 2 Laps due to expansion)
+ DK's Island (this would be where you go through a bit of DK's Jungle, use a canon to shoot yourself up to DK Mountain, then drive back down through a bridge that leads into a cavern to go back into the jungle. This is a remake including 3 different Mario Courses. Will be 3 laps.)

New:
+ New Donk City (a race in New Donk City. A lot of places will be barred off for racing and people will drive up buildings with anti-gravity alongside gliding to the side buildings. Will be 3 races.)
+ Noki Bay (a race through Noki Bay. This'll contain a lot of tight turning, tight gliding, and some minor anti-gravity to help keep racers from falling off all the small platforms. Ramps will accompany them to make sure they jump from one platform to the next)


Battle Tracks -

+ Skyscraper (N64)
+ Palm Shore (DS)
+ Nintendo DS (DS)
+ Gamecube (NGC)
+ Funky Stadium (Wii)
+ Galaxy Colosseum (Wii)
+ Pipe Plaza (NGC)
+ Battle Course 2 (GBA)
+ Bean Bean Rush (M&L Superstar Saga)
+ Paper Plaza (Paper Mario Sticker Star)

Base Character List:

1) Mario
2) Luigi
3) Princess Peach
4) Yoshi w/ Color Alts
5) Bowser
6) Bowser Jr. w/ Koopa Kid alts (not as separate icons)
7) Donkey Kong
8) Diddy Kong w/ Dixie Alt
9) Princess Daisy
10) Wario
11) Waluigi
12) Birdo w/ Color Alts
13) Toad w/ Color Alts
14) Baby Mario
15) Baby Luigi
16) Metal Mario / Gold Mario (for the achievement)
17) Paper Mario
18) Fawful
19) Prince Peasley
20) Petey Piranha
21) King Boo
22) Dry Bones
23) Shy Guy w/ Color Alts
24) Dimintio
25) Rosalina
26) Lakitu
27) Wiggler
28) Honey Queen
29) Professor E. Gadd
30) Cappy
31) F.L.U.D.D.
32) Kamek
33) King Bob-omb

DLC:

Nintendo Pack 1 -
34) Link w/ BotW alt
35) Inklings w/ gender alts
36) Villager w/ gender alts
37) Isabelle

All-Stars Cup 1

+ Hyrule Circuit
+ Animal Crossing Village
+ New Inkling race track
+ Breath of the Wild race track

Extra Battle Tracks

+Urchin Underpass


Nintendo Pack 2 -
38) Captain Falcon
39) Kirby
40) Fox
41) R.O.B.

All-Star Cup 2

+ Mute City
+ Big Blue
+ Dreamland Race (from Kirby's own racing game)
+ The NES

Extra Battle Tracks

+ Nintendo Switch itself
+ Corneria City

(Not likely) Extras Pack -

+ Sonic
+ Crash
+ Megaman
+ Pac-Man

Extras Cup

+ Ocean View
+ Crash Cove
+ Wily Castle
+ Cloud Garden