As we know, now there's only 2 difficulties, normal and challenge. It would be perfect if every dungeons would have 4 category, Normal, Challenge, Nightmare normal, Nightmare Challenge. Like that we would be able to run every dungeons in their own difficulties and be able to score in each category. Actually we only can run in normal dungeons, challenge dungeons add more elites and would maybe add some time on runs, so some rng would be added to each run.

"You may use any class and any gear. You are not allowed to use mounts and pets that are either paid access or limited time event rewards."

I have seen some people using paid mounts or limited ones, are we allowed now to use them ? I don't know too much if they have the same speed as the free one.