Personally, not to be rude, but I'd potentially suggest creating a new thread for the remake? I only say that so it's a little less confusing when trying to find certain elements like the base roster and whatnot down the line. That being said - it's just a suggestion, that's all.
Job #01:
Track Name: Wario Raceway
I felt that deviating from tradition would be pretty fun, and with that in mind, this felt like an interesting proposition to me. Wario Raceway is set in effectively a gigantic junkyard packed with stage elements from older
Super Mario games as references - from Note Blocks being used as springs, all the way to a partially wrecked Airship that you can drive through as a callback to Airship Fortress. All of the advertising that you typically see is replaced with shoddy graffiti that Wario's put up himself, almost completely advertising himself and his own business ventures. Not only this, but the track has a slightly grungy and muddy feel comparable to motocross, in stark contrast to the typical grassy fields and official-looking locations that the rest of the series has stuck with.
In terms of layout, the track begins between two gigantic piles of scrap, with a flag behind placed between them that's been stolen from an older Mario Kart tournament. (The M has been crossed out and replaced with a scrawled W.) As you pass by turns, you'll find that the majority of observers aren't your typical Toads, but are instead Monty Moles - which only becomes more apparent as you turn the corner only to enter a wrecked Airship through one of the three portholes on the side. Drifting up it and to the deck, you'll then be able to glide off into a lake of murky waters - and you'll get extra height if you bounce off a Spring or a Note Block! Upon once more reaching the ground, you'll enter a tunnel of all kinds of scrap, which has incinerators in the background. Then, back to the starting line. However, the third lap has part of the tunnel collapse before you arrive, and you'll need to drive through the incinerators, taking care to avoid the panels through which jets of fire can burst.
Job #02:
Character Name: Maker Trio (Mary O., Yamamura, and Undodog)
Character Origin: Super Mario Maker (Except Undodog, in which case it'd be Mario Paint)
Hey, say what you will, but I genuinely think this would work pretty well. If you're a little skeptical about having three characters sharing a cart with, presumably, only one seat - I imagine Mary would drive, Undodog would sit on her lap, and Yamamura would sit on her head. For motorcycles, Undodog could ride in front of her. Also, the
Mario Maker series is pretty important to represent
somehow nowadays, right?
Character Name: Goomba Tower
Character Origin: Super Mario 3D Land
Given the criticisms of Goombas not having arms, which many argue makes them inelegible for inclusion (despite this being the same series that allows turtles and ghosts to drive, but I digress), I decided to include three of them instead. The bottom Goomba handles the pedals, the middle one handles the steering, and the top one handles items. Goombas are, after all, some of the
Super Mario series' most iconic enemies, so I think they're more than warranted.
Character Name: Eggplant Man
Character Origin: Wrecking Crew
Sure, Foreman Spike might be the obvious choice given his recent role in
The Super Mario Bros. Movie, but I think this goofy little vegetable would be a great inclusion in his own right. It should be noted that Eggplant Man has the interesting distinction of having more appearances outside of home media than much of his competition from the early days of the franchise, appearing in games like
Super Smash Bros. Melee,
Chibi-Robo! and
WarioWare: Twisted!, as well as eggplant-themed characters like the Eggplant Wizard appearing in
Kid Icarus. As a side note, I'd like to suggest that some of his stunt poses have him pull out small Gotchawrenches (tool-sized, smaller than their original appearance) as an additional reference that'd make sense.
Shoutout to Abraham Lincoln, who I
very much considered for inclusion given his role in
Mario's Time Machine. Unfortunately, it wasn't to be.