What-if idea: Sonic Legends inspired Mario fangame

[OddieTheRock]

A bit of a double post but @KrystalPhantasm and I were experimenting with a possible art styles for this hypothetical idea.

The styles we tried ranged from SMB3 All-Stars, SMW (but a bit Mania-ified*), Sonic Mania**, and Mario & Luigi: Superstar Saga.

*like that one contest entry by @SilverVortex years back)
**like that one test sprites @Mors once did years back

Now, I know at the moment it's all just art style tests of Mario but this got me thinking; What exact levels from what fangames this hypothetical idea have? And probably more importantly, what engine will it be in? (Krystal suggested one of @Gate's engines)

And finally, who'd be the artists, programmers, and other related crew on this? I'm not planning on making this myself, I'm just throwing the idea out for people to get interested in..

With that said, I wonder if this could possibly become a community fangame (I think it's been a while since this site did one of those)..

List of projects I eventually plan to finish after the indefinite hiatus is over, assuming I don't abruptly cancel them:

Spoiler

Mario's Rather Unusual Trilogy (Mario's slightly unusual Boss Rush (Completed), Mario vs. Some Unusual Foes (In development), Mario's VERY Unusual Final Frontier (In development))
Sonic's Foray into Random/Unusual Zones (spin-off of Unusual Trilogy, in development)
Angry Birds Slingshot Frenzy (In development)
Super Mario Flashback: Really Good Edition (In development)
Super Hilda DX (In only conceptual phase)

Yes, I am aware that I have about 6 or so fangame projects currently in development at the same time. And yes, I am also aware that all of this is very ambitious.

+ List of projects I'm helping out with in some small capacity during my hiatus:

Spoiler

Super Mario Bros Dimensions 2 (as a spriter, only for Mario's sprites)
MFGG Community Fangame Project 3 (as a spriter)
WordGirl ReWired (as a artist)