The Universe has infinite possibilities, and Aeons and Paths are constants born out of the universe and that dictate the Universe, making their possibilities infinite.
Mortals cannot comprehend infinity, nor infinite possibilities, thus the future of Aeons is uncertain to them. Nous, being a God and an infinite being of the Universe itself, is capable of comprehending infinity and the infinite possibilities, making them the only being who can conceive the future of an Aeon. And in fact, they are the reason why Aeons and Paths are defined as such, because it keeps Zandar’s theories locked in the Circle of Knowledge (which is why Zandar wants to nuke it)
This is, very obviously, what the author is telling us, and is obviously also the thematic meaning of Aeons as a whole and to their relationship to the Universe.
Everything else requires not only headcanon and additional justification, but it also takes away from the narrative significance of the entities within HSR.
Please stop larping.