It’s been a good long while since Sakaar Arena was run; seems like a perfect thing to do to spice up an off season to me.
Anybody else have something they’d like to see to make off-season PVP more interesting?
I’d like to see a 550 wave mode. Have some special team requirements similar to what you see in off season PVPs (xmen only, foes only, female characters only, etc). Boost everyone to 550 (that way, if you got some fully/high covered characters but don’t have the ISO, you can use them) and grind away!
OR…
Just do double ISO for the off seasons since their aren’t shield or season awards 
Wouldn’t mind Gauntlet, so many new chars since it was last run, so many more combinations!
Combined Arms lighting rounds 24/7.
I personally would be interested in seeing what a Versus Tournament would be like if players were restricted to various “families.”
For example, if you pick Professor X, then you are restricted to only X-Men characters or Guardians of the Galaxy characters if you pick Star-Lord.
Something like this has been suggested for Best Friends, or whatever the event is called. You get a level boost that depends on the closeness of the characters, and a level decrease if they are enemies.
I wish Coulson had an Avengers tag, since he is the reason the MCU Avengers got their act together. Then we could benefit from some boosted Coulson/Hawkeye synergy in events like that.