Support! Arena used to be my favorite thing to do on this site when I first joined, but got burnt out from it due to how slow and time consuming it can be. After getting most of the achievements for it and the companions I wanted I've, sadly, not touched Arena since.
You know what? I can support a PvE Arena, but I doubt we'll get one.
I know the staff probably won't introduce a regular PvE Arena, due to it making ticket farming too easy and/or Arena achievements too quick to farm and knock out, but it would be nice not having to babysit the game for 20-30 minutes, especially if you're trying to knock out a few consecutive rounds in a day. Maybe if they lowered the number of tickets you could win for a PvE they would be more willing to implement this.