Missing Diplomat Quest!

I believe all players on the Alliance side have gone through the 'Lost Diplomat' quest chain, perhaps some of you just flew through the quest without reading what the NPC had to say, but they mention how The King of Stormwind vanished.

He was captured by Defias while traveling from Menethil to Theramore. We captured the villain who betrayed the King, but what about the King! Where is he?

Stormwind has been ruled by an eight years old for three years now. We would like to get our King back!
Is he dead?
Has Jaina plotted against the Alliance to gain more diplomatic influence?
Are the Defias intending to place one of their member on the throne?
Has some mystical dragon from the past replaced the King with a peon?

We have to know! Jaina has been keeping to much to herself. Burn that witch.