At the very least, they need to give more loot than just 2x for 16 man. Right now it's more beneficial to run 2x 8 mans because you get the same amount of drops. This thread needs to be seen. Fix the content for normal/hardmode, and give the nightmare players something challenging like new mechanics. The new instance is going to be the deciding factor for a LOT of raiders on whether or not they should continue their subscription.