Just take all pvp servers that exist (for that version of classic), fold them together with dynamic mob spawning and make these faction dominated servers actually pvp. There is no reason to have a 90/10 split on any pvp server… thats just pve with a minor chance to either bully the enemy, or a nightmare for the minority faction who is fighting 10-1. Force these servers to be 50/50 or at least 45-55/45-55 to make it somewhat fair for both sides.
Not only that but add rewards for world pvp with people within 3-5 levels of you, make player corpses drop some loot/coin or potions… if you really wanted to stimulate wow pvp, then do so. Make world pvp kills give an honor point or two so that its encouraged to have wars outside of bgs… make random bg finder for classic so that all the battlegrounds are actually active.
With only a few changes that dont have anything to do with class balance or pve mechanics and the like… you can breathe life back into wow pvp quick fast and in a hurry.
