This was literally all announced in a prior Live Letter as part of a slide detailing the SHB launch schedule. How anyone can be even remotely disappointed is beyond me. Following that, we never got meaningful balance changes until the Savage raid releases, for reference go and look up the patch note archives for 4.01 and 4.05, 4.01 was literally just enmity boosts for tanks and a few fluff potency changes.

The new map dungeon has been stated in the patch notes for 5.0 two weeks ago to be releasing in 5.05.

Honestly this community never ceases to amaze me in what they find to complain about.