At this point I don't want anything WarioWare until we get something new. Whether it's Wario Land 7 or Wario World 2. Hell, I'd even be excited if we got Master of Disguise 2.
I just want something that isn't WarioWare.
That actually sounds brilliant. Having a Waluigi themed stage where he's trying to sabotage Wario would be funny as hell!
I feel like either one of the two Wario genres where Waluigi is out for revenge would be dope.
Actually, it feels long overdue.
If we ever get a new Wario Land game, I always thought it'd be cool to have Waluigi as the secret main villain. But you don't find that out till near the end of the game.
It'd be a cool twist with Waluigi out for revenge for all the years of being left out. And never being anything more than...
Parallel World is pretty cool!
Someone also did a hack where Wario has the Pizza Tower moveset and it actually controls quite well
https://www.retrogames.cc/gameboyadvance-games/wario-land-4-pt-like-moveset-conversion.html
The newest demo on Steam is pretty fun. You'll definitely notice a lot of respect to Wario Land. Someone even already made a playable Wario mod for the game, and it fits in so well!
https://gamebanana.com/mods/550257