If I’m blizzard I completely revamp AV and not add another world PvP event just upgrade STV gear again and rework ashenvale to incentivize higher levels to fully participate in completing the event.
Back to AV revamp… redoing the land, make both sides symmetrical, get rid of the snow , rework the summoned npcs, add some new ones that go with whatever lore they choose for the next phase. As far as technological aspects of this it’s so dang easy it’s sickening that they haven’t added anything newer to the environment. It doesn’t need to be cata drastic but you can do this easily. It’s a shame they haven’t even attempted to edit the bgs in a positive way.