That's a great point. It could be Aurax/Aurang that is the Dunyain. I would almost like that better, in a way. As if, unable to destroy them, they roped their (No) God to their own purpose. We may see Kellhus do that as well.
The only issue I see, then, is why the first apocalypse? If the Gods will be roped by Kellhus, no need to draw them out. If their goal is to reduce the souls to 144,000, how does that fit? Is that the limit of sure control of the Dunyain? 12 x 12,000 disciples? One Dunyain per world? Possibly. Kellhus already commands more than that, though.
Well, the number 144,000 is essentially arbitrary, in the sense that that is just the number. Why do they get the results they want at that (really any) number? I think it is connected to how the Inside informs the Outside. I think that at that "low" level of souls, judgement isn't collected enough to effect a soul's journey through the Outside. Alternatively, perhaps they have something that can effect the Outside, yet can only exert a certain amount of influence. 144,000 souls worth of "force" would then be the amount this thing can "exert."
Also, why would the No-God/Aurax initiate the Ishual prerogative before the control of the world is complete? There had to be a reason to initiate Ishual. The culling of the world's souls couldn't be the reason?...Could it? Maybe this is the way they prevent the disaster of the first apocalypse, by setting in motion their destiny, knowing that Kellhus would bring them the world. Hence the No-God reaching out to Kellhus on the circumfix. Maybe.
Well, I'm still not sold on the No-God actually having agency. I've said since they earliest days that it is my feeling that the No-God is not some "master-mind" or even any sort of actual leader. I believe that the No-God is just another thing of the Tekné, just like Sranc or Bashrag. If that really was the No-God speaking to Kellhus, I think it's because like a pool of water, constantly seeking a way to "reach out" since it is trapped Outside. I think in the moments where Kellhus heard the No-God, it was because his soul was open. Like (I think it was) Akka had said, each soul is like a pin-prick though to the Outside. I think in those moments his soul yawned and so was open to influence. Or perhaps not.
But why the desperate questioning of "Who are the Dunyain?" Those glimpses bother me more than anything else. Unless only the No-God is aware of the Dunyain. The Consult acting antagonist to set up the Kellhus/Celmomas circumstance I can understand, but the questioning by the Inchoroi in the north doesn't fit the narrative very well.
That was why I assumed it was the No-God that was Dunyain. The Inchoroi are ignorant tools, the extensions of their belief, bound to destroy as many souls as possible as long as it serves the No-God's end. Don't read into what their beliefs are, only what goal their beliefs achieve. Think Shimeh vs. Moenghus.
I still can't buy that the Dûnyain were somehow made by the Consult. I think that the opposite is more probable, that Seswatha created the order. How would they have known of them? Perhaps I am misunderstanding your contention, but it seems perfectly plausible that they would be ignorant to the Dûnyain.
H-What if Mimara finds no mark on Kellhus' soul? What if the marking of one's soul requires belief, and a lack of belief means a lack of a soul? That is something the God's can't abide and why the Celmomas' circumstance failed to draw the gods the first time. An upside down soul, crafted himself....
That I am not sure on. I don't think that Kellhus lacks a soul. I think perhaps Kellhus' soul is special somehow, perhaps upside-down as well, or perhaps something else.
I'm not trying to shoot you down mind you, I'm just throwing my own ideas out there too.