Old Kingdom will receive the most changes. Elder Nadox will spawn only one Ahn'Kahar Guardian and Jedoga Shadowseeker will ascend only once in their respective encounters. In addition, some static trash groups will be removed, while some roaming groups will have their paths altered. He stressed that these changes are not meant to make the dungeon easier, but rather to make it a slightly quicker run, more in line with other heroics. He also acknowledged that the dungeon finder made the daily quest associated with the dungeon somewhat complicated to obtain and turn in, and while the dev team would like to fix it, they still haven't found a satisfactory solution.
Later in the thread, he announced a similar change to Nexus, namely that Anomalus will use his Create Rift ability much less often. Finally, he revealed that a "quick start" option for the Culling of Stratholme is in the works, but will likely not be ready for the next minor patch due to the complicated scripting required.
All of these changes, I am sure, will cause great joy among the badge running crowd. I admit I never disliked the lore of the Culling of Stratholme instance, but after the first 10 times, you know, it loses some of the lustre. This also makes me wonder which dungeon is next. It seems like Halls of Stone is really the only dungeon left that still has a problem with people dropping group. I'm guessing we might see a reduction of the time to victory on the Tribunal of Ages event, and possibly a pruning of the trash before Krystallus and Maiden of Grief to give more incentive to grab them.
Regardless, there's no word on when these changes will be implemented, but all the same, they should be welcome. Stay tuned for any more news on this stealthily announced "minor patch" as we hear it.