The Y'Shaarj sounds files are perfectly creepy and exactly what I imagined would happen. So what happens to the heart?

Shaohao sounds files are peculiar. When do you get to experience this in game, and also, why do I have a strange feeling that shaohao is like bitter or evil or something.. He might just sound that way but sha possession is sha possession. Mists fell because...? What does shaohao know about y'shaarj.

Thinking of siege of org as a raid; what are other bosses going to be? Random old god minions like the 2 in DS? And the place you fight those 2 bosses... Maw of shu'ma.. And maw of go'roth.. Two mini old gods? They are just popping up everywhere.. I only say this because mists has featured a lot of bosses that don't die at the end, we save them - but some we gotta kill. The horde will be hella awkward after all this...