My friend came up with a theory that Hellscream will turn into a Mogu. Reasoning is that the Mogu are dark energy beings. Mogu also resemble orcs a bit as well. Fel Orcs came to be when they try to control the Fel Energies of Outland (there is more to it but it is a generalization) Maybe Mogu are Orcs that controll the energies of the Sha.
---------- Post added 2012-10-12 at 04:06 PM ----------