Ideas for Super Mario Maker 3

I know what you're thinking:
Mario Maker 2 isn't even a year old and you're already thinking of Mario Maker 3?
Yes. Because why not?

Since 3D World has different mechanics that cannot be adapted to traditional Super Mario Maker style and had to get a separate mode, I propose something similar for OTHER Mario games:
-Mario Brother
-Donkey Kong 94

Why these two? Well Mario Brothers lends itself for Vs. Mode stages.

The DK94 levels work on a puzzle solving arcadey type of gameplay. It also combines elements from both the Original DK and DKjr.

I didn't add Doki Doki Mario because that would require a lot more effort AND I need to save something for SMM4.

Now for Elements to work with on Normal modes (SMB, SMB3, SMW)

Magic Orb:
Remember in SMB3 when you beat a Boom Boom and it dropped these to end the stage? Well, they need a comeback for SMM. It makes mandatory boss battles more fun, since they can't be cheesed.

Koopalings:
I know that Boom Boom and Browser Jr. Have a similar function, but some of them had Unique attacks. Wendy's rings, Lemmy's balls... would be fun and refreshing in SMM.

The SML Superball in all games:
Having the Superball in SMM2's SMB mode was a pleasant surprise. It would be nice if it could be exported to SMB3 and beyond.

Ice flower:
This NSMBWii item can open up new gameplay opportunities. Makeshift ice platforms... mmmm!

Hammer suit:
One half shellmet, one half awkward fire flower... this could make SMB3 levels more special.

More enemies:
Charging chucks, shyguys, ninji, Birdo, sidestepper, fighter fly, etc.

Last but not least:
Super Wario Maker mode!
Basically adding Wario (and Waluigi) to the roster of playable characters... among other things:

Coin doors and coin checkpoints:
From Super Warioland: SML3, these doors and checkpoints would only work if the player paid 10 coins for usong them. These would force players to pay attention to their coins.

What would you like to see in SMM3?