Who is Mannoroc?

The Mannorac Coven in Southern Desolace is a home to agents of the Burning Legion. It isn't used for much, just 1 or 2 quests. The architecture looks like the Satyr's architecture. This raises the question: Who is Mannoroc and what is his Coven for. My opinion: Mannoroc was a Dreadlord who was in command of Desolace. He took up the old Satyr ruins as his home. After the Fall of Archimonde he sealed himself within a spire which turns into a series of caves and houses the Council of Mannoroc. The instance would be from level 39-44 and it would be the home to Satyrs, Infernals, Mo'args, Nether witches, Burning Blade Orcs, and of course Mannoroc the Dreadlord as the final boss.