I'm calling it now. Dredgen Bael (sp?) is someone we've met before. All the way back in Foresaken, tucked away in some obscure lore. He is the Ghost killer who hangs Ghosts on a chain, the one hunting Micah-10 and her Ghost flock. He is Cyrell. The latest trailer shows Bael with a chain of dead Ghosts and he has pretty similar motivations to Cyrell. Don't think I forgot about Cyrell. I was hoping he'd show up again, if they are truly one and the same.