Taken from the Q&A recap from the front page:
So, there is a good chance we will see a class chain for our class in WoD (like the warlock quest chain for green fire) . It makes sense since we are visiting a world full of shamanistic orc tribes.There will be a legendary questline again in WoD. The questline will be a little bit more custom to your class to help with the lack of class quests. Class quests are very resource intensive, so at most we might see one or two in WoD. (Maybe Shaman)
Let's assume there is going to be such a quest chain, what kind of quest will it be? Which characters would be involved? What will be the rewards, etc?
I have a feeling it will involve Drek'thar, since he was the senior Frostwolf Shaman under Durotan's rule and possibly Thrall since he is around.
Rewards I am not so sure of, maybe a Frostwolf shaman transmog set? A weapon? A new spell or ability? A tanking talent tree?