Board Thread:Spoilers!/@comment-1916997-20151017160320/@comment-26443838-20151021122855

I suppose Merlin would survive and return in the second arc. He might appear in the present the same way his Apprentice did. I mean in the first half of the fourth season, the Apprentice was trapped in the hat until Operation Mongoose part 1 in the second half where takes action at last. We'll have to wait and see.