http://2p.com/1066617_1/Ghostcrab-Co...To-Azeroth.htm
I remembered Ghostcrawler saying this during an interview with 2p.com that the main story will return to Azeroth after MoP. Granted my Google-fu isn't all that great, and I'll be damned to actually find the dialogue of the actual interview.
Also, 2p editor has bad grammar, so keep watch on that.