To fix population imbalances they just implement a floating population cap. All alliances can only Field what the lowest alliance can. When the lowest alliance builds a que of say 20 players then the cap is raised for all 3 alliances. When a population drops the cap is lowered.
Dragon knights and wardens making up to 80% pluse of the pvp player base? Perhaps reverse years of the endless nerfing of Templar class, they couldn't possibly be anymore powerful than dragon knight's and wardens. Do it on all their skills to bring back some real diversity in the game.
Bring back the permanent stealth reveal of skills like radiant mage light, stealth in pvp is just stupid right now. Used to be once you gave it up you were committed to the fight... not any more. Mess up the attack just stealth again, didn't get it right again just stealth right way, whoops messed up again... good lord. There is no risk anymore. Detection potions are a fail, they do not reliably work, having to spam an ability that drains your resources that again does not reliably work.
Abandon the armor proc as your servers and game can't handle the lag, this is evident by how much the game breaks with so many ball groups spamming dark convergence.
AOE attacks should be significantly weakened, everyone loves talking about using skill to play the game yet abilities where you don't even need to face your opponents to kill them??? Are you kidding??? Why are they so favorable, it's because they are so powerful and even playing in a drunken stupor you can't fail. Also when creating a laggy environment with dark convergence you don't have to worry about aim just yawn with one hand and spam with the other.
Last, programmable devices, either allow them or delete accounts you catch using them.