As far as I remember the myth of Arthur, he will die and end up at Avalon; I heard somewhere they will wind up the story "along traditional lines."
The bloke who turned up without a face at the end was scary for my dd (wish she hadn't seen it). Apparently it means that Morgana has finally declared battle, so at least they are getting on with it now! I think the dragon will help out then it will be the end of him.
Mordred looks like he will be getting up to mischief next week if the trailer is anything to go by, and Finna last night said not to trust the druid boy.
3 more episodes to go!