Okay, so until now i didnt beleive in Cho'gall as a lore charactor, that was changed by reading wowiki(my main source of info). And there it said "Cho'gall began the resurrection of his new master - the Old God C'Thun. This deformed the ogre's body which became monstrous and with features similar to his master's." and i thought that mabey what we fought in AQ wasnt C'thun,but just Cho'gall pretending to be C'thun (im unaware of the time period of his actions). However for those beleiveing that Cho'gall is currently ressurection C'thun are wrong, he is dead, Me'dan killed him with Ateish.
This being said, would it be a plausable theory?