I know for a fact that I've asked this question at least once before on this discussion board, but I feel it's worth repeating again now that we have a few more people who like joining in the chat.
So, here's a question for you: Do you think Aeon set into motion her own demise?
Yes, I know there's little to no evidence that points towards this, but when it comes to the future, that is Aeon's one shortcoming. She can predict multiple outcomes depending on the events and the way people carry out their actions. But as for WHICH outcome will be THE outcome, that is another question.
People can deviate from their destined fates. In fact, some, like Flarah, Lazarus, and the rest of the Ancients, are completely immune to Aeon's sight and control.
So, do you think Aeon may have jumped the gun when she thought of blackmailing Mika into setting her free? If she had known what that choice would lead to, would Aeon have chosen to remain in her City of Eden?