Just to toss out my two cents for Xeldan without clutterizing the bugs thread, I thought I'd make a new thread where everyone else could voice their opinions.
How about if instead of entirely removing enraged plague priests, they're set to spawn randomly when you kill plague priests, kind of like with other mobs in other zones. A new drop could be added to the enraged plague priest's table, a book of some sort, which would be added as a turn-in to finish ring5. This would keep the quest at about the same difficulty as before and still make the enraged plague priest's loot accessible without having to change the difficulty of the final boss in the quest.
How about if instead of entirely removing enraged plague priests, they're set to spawn randomly when you kill plague priests, kind of like with other mobs in other zones. A new drop could be added to the enraged plague priest's table, a book of some sort, which would be added as a turn-in to finish ring5. This would keep the quest at about the same difficulty as before and still make the enraged plague priest's loot accessible without having to change the difficulty of the final boss in the quest.