Edit: Might as well add to this.
It has bothered me for a long time now that ZoS seem to love throwing in Sheo everywhere, while some princes like Sanguine barely get any reference. What do we have? A public dungeon with some of his followers, some more of his followers as npcs in Heists/Black Sacraments, and we find out through a book and a few npcs in Elsweyr he is called Sangiin for khajiit and seem to be related to vampirism there.
That's not much.
If we get Cyrodiil chapter next year (Which I assume we do), then I think it would be a great time to add some more content. Preferably some side plot without any daedric world domination. The people of Cyrodiil has suffered that enough, and are likely somewhat easily influenced to find some enjoyment or oblivious bliss because of it.
Edited by NotaDaedraWorshipper on July 12, 2020 1:38AM
Would be interesting if we get his zone(zones) as a chapter one year, fully focused on a very obscure prince, and filling out the lore lot of what he is about.
Maybe he is alot more dark and twisted than we think??? Would be a cool spin me thinks.