I suppose the only choices for the female forsaken are Moghedien, Cyndane and Hessaleth. Any would be taking a huge risk by going over Morridin's head. Hessaleth would probably disguise her appearance, but the way she spoke doesn't fit - she knows about Isam's recent failure for example
With the e-prologue now out, I thought I'd start a full thread
This might move to a new book 14 forum soon, or it might be when the book comes out
Anyway, I'll post my thoughts later, along with the link to the summary in the library