Too busy having a life and enjoying the content. I think I'm about 72 1/2 right now, just finished up Borean Tundra and now I'm headed to Howling Fjord.
Zul'Drak has a quest that requires you to take control of an Abom, skip it. It's bugged.
Icecrown has a quest that requires you to take control of an Abom, skip it. It's bugged.
Stormpeaks has a quest that requires you to shoot harpoons at hey stacks, and there is a quest that requires you to harpoon dragon riders. Both were bugged for me.