User blog comment:Tommy,Klaus&Kol2012+/Were the shedim confirmed or even hinted to appear in the final season at comic con?/@comment-4554525-20190723145945/@comment-34461065-20190726205919

It is not a matter of whether or not they can plot wise re appear... AGAIN, The cambion could have been brought back any of the past seasons with Lcuifer walking on Earth, but they didn bring the Cambion back because they do not see it as an important or insteresting plotline as writers...

It is not that theoritically it is possible, we are saying this from the perspective of the writers of the show, not like from the canon of the show. So that is why they won't ever be brought back.

AGAIN, Ketch and rowena weren't one off characters, they were anno0unced as recurring character in their origin seasons, from the very beggining they were meant to reappear in a few episodes after. The wepisodes are not written and shot each week, they shoot half the season before airing any of the episodes.

YES, the Shedim could have magically escaped Hell and could theoritically reappear, but just like the Cambion, the Alphas, the skin walkers, the Giants, they won't be brought backm they were background, ambience, plot devices for one very specific character moment, not for a whole seaso, not for an entire arc... they were a little grain of sand, one offs