User blog comment:Touchinos/Season 12 Finale Spoiler Discussion./@comment-26855072-20170421092504/@comment-1975828-20170422073128

Dagon isn't a major character. We haven't seen Asmodeus. We'll never see Asmodeus if the writers focus on Dagon. In addition, Dagon is not going to leave Kelly behind, not a second time. Watch the promo, the brothers and Castiel fight her, and will definitely kill her.