Speaking of prophecies, page 76 of Realms of Sorcery has this:
"Indeed the Bright Order has a long outstanding prophecy of a female Battle Wizard without peer and is eagerly awaiting her arrival."
I don't know if this prophecy is present in any book that isn't Realms of Sorcery, and most likely this is just one of those things that had no follow up, probably because most GW writers either didn't know or didn't care to explore it. Personally I find it an interesting concept to explore a character who would have to face pressure to live up to some weird vague prophecy that they probably don't have anything to do with. I'm not a big proponent on following through with prophecies though, I tend to think they're bullshit by default. Or at least if they're followed through, then it's best done so in a nonstandard way to make it more interesting instead of having it be straightforward. Vague prophecies are the worst though.