As far as I can see the Consult has the only real plan.
The Cunuroi have probably forgotten theirs.
Kellhus's has to do with him being the Second Apocalypse, but what (possibly who's) world is to end, remains to be seen. Currently I have the impression it has to do with creating a gate to the Outside.
The Halaroi in general have none.
Akka and Mimara ("our Heroes") are clueless (to a measure).
The world created by Bakker is not ideal to think about under influence I suppose, but with some mind-relaxing stuff I got thinking last night:
What if the Cunuroi actually managed to seal off Heaven (before the Inchoroi even landed) to ensure they would never got to the Outside on their deaths, and Kellhus is the one to unshut it for humanity? Think about it: There is currently only demons and evil deities we have seen. Where are Heaven and the good-aligned outsiders?