Is there enough time for Rand to transform the Aiel? Surely they will still fight in the last battle, especially the (name escapes me) Dragon Sworn Aiel. I think it much more likely that Rand will sow the seeds of their transformation. After all, they only have to be back to the Way of the leaf by the next AoL, not by next year.

Aviendha will help with this transformation because she alone can see what will happen otherwise.

I'm also firmly of the opinion that Rand MUST bind the seanchan to serve him. So that his peace lasts over all after his passing. He must be seen by the Seanchan as above their emnpress and as such his words are binding. Him bowing to the Chrystal throne is one of the things Aviendha must prevent.

I can't agree about Demandred capturing all of the major cities either. If this happens then all of the armies will return to defend their own people. I can't see any of them agreeing to go fight more trollocs in the blight whilst trollocs are cooking their wives and children at home. No matter what deal they strike with Rand.