I think that the daughter of the nine moons might be either a) Egeanin or b) Berelain (claims to be a decendant of Artur Hawkwing)The daughter of the Nine Moons won't be aboard with the Seanchan, because in the LOC,a Seanchan guy is checking out Ebou Dar, and thinks to himself (from what Mat blurted about the Daughter of Nine Moons "taking" him) that the Light will certainly grant them (seanchan) victory if the daughter of the Nine Moons is coming.