i remember when people asked for nerfs to weeping city of Mhach and the devs essentially dug their heels in and told everyone to 'get gud' as they were not changing its difficulty, this was a excellent move as it allowed them to make 24 mans a bit more hectic and they tried to force the playerbase to improve. I highly doubt they will reduce Ultimates' difficulty it is specifically designed with max gear available on their release something this game lacked until 4.1, also it kept the more skilled players around longer be a bad idea to let an extra month's sub money from 5% of the playerbase(very hyperbole not actual numbers) go.

Also even people complained UcoB died too quickly and i'm like >_> have you killed it, no, then don't speak of difficulty and those that did kill it were generally happy with its difficulty only its length was an issue, so why would they lessen the difficulty of the playerbase they are targeting when the targeted playerbase is happy how hard it is.