So I know there are probably a dozen threads like this on the forum, but I wanted to throw my two cents in on the topic of PVP Fixes..
1: diminishing returns on Stuns, it is a known thing that purify does not prevent stuns for the full duration of its timer, as you can be Stunlocked for easily 15 seconds. if you want stuns, that's cool, grant stun immunity for 10-15 seconds after you are affected by a stun.
2: Cool Down timers on non Class Abilities, if I wanna blow all my mana holding down a point by spamming Recuperate, or spam Purify because stuns are coming, let me. you got rid of healers being able to just cast their healing spells in PVP.
3, Auto Dismount in frontline when you get hit by an attack.. Not a Hard one.
4; Don't scale the PVP Series XP with how many you have done.. just make it 5k a Level, it's a slog already to max that thing out and it doesn't need to continue to climb as you go.