I was thinking of something along these lines, like an Arena Dressing Room & Lobby or something similar, where you could bring characters from any version of the game and outfit/equip them for Arena style matches.
Some immediately obvious issues I see that may be interesting to try to tackle would be trying to balance different talents and skills across multiple expansions and levels. They could try some sort of power normalization, but this makes me think of the OP low level toons in Dungeon Finder.
Anyway, I do hope that arenas get some love and attention in some form, and perhaps it’s something like a WoW based Arena lobby game that isn’t a leveling RPG that maybe does or doesn’t tie into your WoW Classic, Progression Classic, or Retail characters.
