Nerf Heroic Istanci

Ahn'kahet, the Old Kingdom
With that said, we plan on making some changes to The Old Kingdom in the next minor patch. For instance, Elder Nadox will only get one Ahn'Kahar Guardian and Jadoga Shadowseeker will only use her Ascend ability once during their respective encounters. In addition, a couple of the stagnant groups of bad dudes between the Befouled Terrace and The Desecrated Altar will be removed, while some of the roaming groups will have their pathing altered. These changes are not to make this instance easier, but rather to make it a slightly quicker run and more in line with some of the other Wrath dungeons.

Nexus
I think you mean Anomalus. Yes, he will use his Create Rift ability less often. [...]

The Culling of Stratholme
We plan to do something to allow players a quicker start to this dungeon, however, the fix to the scripting is more complicated than the changes we're making to some of the other dungeons and likely will not be ready for the next minor patch.