That's an interesting question, profgrape.
My guess is that they might remain as the masterminds behind the scenes. After all, Dûnyain are pretty effective at doing so, and they have already done a great job of working things from "behind the curtain" for years. I don't know if there's any need for them to "go public" with the No-God and his legions presumably already doing everything that needs to be done (keep new humans from being born, then work on getting the population down to 144,000).
Though it's always possible they have other plans that we don't know about yet. Hopefully we will get a POV from at least one of them (or at least from Malowebi, who still seems to be around and fully-aware) that sheds some light on that.
Even if they don't announce their existence to the world, I think it's probable that Akka, Esmenet, Mimara and co. will return to Golgotterath by the end of the series and learn of their existence (and role in orchestrating the Second Apocalypse) then.
Yet aside from the horde of Skin Spies (one of whom salted Kellhus and will hopefully be getting a sweet end-of-year bonus)
This bit about the skin-spy did make me chuckle.
Jeff the skin-spy
(making a reference to Eddie Izzard and his usual character naming conventions here...), employee of the
year millennium!