It's completely infeasible, but Wario Land 4 style visuals for all of them. Just imagine them all having that level of charm to their graphics and animations...
Also uncompressed/remastered music obviously.
Shake It looked amazing but it just didn't fit Wario's rash attitude well. Wario Land 4 style seems like a better option. It'd be great if they used the lack if limitation to make Wario even more expressive.
I truly believe Wario Land is gonna make a comeback. People keep asking for it. And Nintendo has been bringing back a fair bit of Wario. Hell, they even brought back the Mario & Wario Snes game that most people didn't even know existed.
I have been bombarded by existential thoughts lately, I think it'd be better if I take a little break. Questioning my beliefs and world view is good once in a while but now it's not questioning anymore, it's more of just my anxiety acting up...
A few years ago, I bought those WarioWare keychains/phone straps. The Wario one was my favorite, but none of them were sturdy. It ended up falling off and is now lost forever.