Post-Siege Orgrimmar Problems

Hi, Blizzard. Now I was checking out Orgrimmar on the beta and a few things didn't quite add up to me. First of all, why are all the warlock trainers in the Cleft of Shadow again? They died during the siege of Orgrimmar. Couldn't they just be renamed or replaced with other NPCs? It doesn't make sense that they would be alive.

Now I've noticed that the guards are all mostly tauren and trolls now since the Warchief is Vol'jin, but Garrosh still appears to be on the throne in Grommash Hold -- that doesn't make much sense. I understand that Garrosh is a part of the pre-60 questing, and he's also part of the Cataclysm / Pandaria questing, so here's what I was thinking:

After a player has completed the Siege of Orgrimmar raid (or just the Garrosh encounter), some phasing is added to Orgrimmar to reflect the change of power. The phasing could also be 'forced' if the player is level 90 and has already started the Warlords of Draenor quests, or is above level 90.

Wouldn't it be easy to phase Orgrimmar if only inside Grommash Hold? Just put Vol'jin on the throne as the proper Warchief so it looks a little more legitimate. You know what I'm saying? And if you don't want to deny level 90-100 players the low level quests that Garrosh previously offered, you could add his old quests to a board, sort of like the Warchief's Command Board, or do some sort of 'Timewalker' thing with them. Kind of like how we can speak to an NPC to go back in time to see Theramore before its destruction. That kinda thing.

Just a few miss-matched thoughts of mine that I figured I would share with you.

Other than that? I'm loving WoD so far! Keep up the fantastic work, Blizzard! I've been a loyal fan ever since the Warcraft games, and I don't plan on stopping anytime soon. ;)