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-34461065-20190726022402

They won't be used again because no background character like this has ever been used again, much less this quickly. Reapers were reaused because it made a lot of sense to explore their mythology, they actually had a connection with the main plot and things that happened in the plot (Being minions of Death and all that).

The Shedim were never really even seen, they were not explored, their backstory was very half assed, and as far as I am concerned, it could have even been a big fat lie by Asmodeus. Heck, the wrters probably weren't even thinking that hard when they made it, because of how random it really felt for their addition in the episode.

If a character was ever reused in the plot, it was reaused many seasons later, after another group of writers, or same writers picked their plot potential up. But as said by Touchinos, this is the last season, and this season in my opinion, is aiming to bring back older villains and older plot. The Shedim were a tiny addition from no more than two seasons ago. There is not a real point to bring them back. Let me bring this other example, the Cambion. Many fans want teh Cambion kid to come back, he was powerful when Lucifer walked on Earth, and Lucifer came back! But nope, not even a mention of him, the writers didn't care about him, because he was justa one off char., another plot device that had no real impact in the overall plot and the writers did not see potential in. Yes, we as fans have headcanon, and ideas, and fanons, and such... but while we may have ideas for plots, the writers don't have the same as us nor the same intentions.

There is no real reason they will bring them back, just like they never brought the Cambion back