My prediction is that Moiraine's role will be suprising to many, especially those who think she'll be back at Rand's side, taking the place Cadsuane had, and more recently Nynaeve is taking. Nynaeve isn't warming the seat for Moiraine, I'm pretty convinced of that (personally, I think Moiraine will tell Rand her role isn't at his side, but that Nynaeve must stay, so Moiraine will honour Nynaeve's sacrifice by going to give all the help she can to Lan, to try to make sure he survives and come back to Nynaeve. Lan has put aside his own war to be Moiraine's loyal servant in her quest to find Rand. It's time for to honour Lan's loyalty and join his war