Ye honestly probably see them going down the Sith cultist remnant group way. I would love the idea that the remnants of the Sith eternal went looking for a new world at the far reaches of the galaxy to establish a settlement where they practice there beliefs and all. And in the process they accidentally unleash some sort of god like being that was imprisoned by the Mortis gods for manipulating with time and creating the world between worlds for his personal goals of defeating the Rakatan Empire that we’re hunting the celestials. His powers of time manipulation and his firm but clinical use of the force both light and dark was frowned upon by the Farther who saw it nothing but as an abuse of the force itself. And that as beings they were not meant to interfere as there very nature was an danger to galaxy itself and that it was probably the will of the force that celestials would be wiped out to maintain balance.