The solution to all of this is so simple it hurts knowing that it isn't implimented into the game yet... Make an alternate story mode version of all the turns, they become nothing more than tank and spank type mobs, maybe youll have to dodge an AoE or two. No achievement, no loot, just cutscenes. This way people get to enjoy the story, and everyones precious soon-to-be-outdated-and-tossed-aside shinies will be safe, and guess what!? They won't have to nerf the content and you still won't run it ever again!