PAX EAST: I was the person that asked the "Challenging content" question at the end.

[RoninDarkchild]

If we had Xelphatol (extreme) it wouldn't be just increasing enemy damage and HP, they also have to add new attacks and properly test everything over and over.

"Why" would they need to add new attacks or new attack patterns? Did Diadem Normal and Diadem Hard have new attacks for the same mobs when the only thing that changed was the mob rank? The ONLY difference between Diadem Normal and Diadem Hard was Mob ranks and Chest drop rates!!! Hard mode had higher chance of gold chests.

There isn't even a real difference in the new Diadem between Matron and Fury except for the method of progress. It's the same exact map, same exact mobs.