Board Thread:Speculation House/@comment-14138255-20141031002615/@comment-24994749-20141128041015

Taking the theory that the end of Volume scene was a dream, the Mysterious Sword Lady's hair looked feathered like the Transient Princess', and in her dream, Yang gave her her face. So Yang thinks Mysterious Sword Lady is Raven Branwen (her mum). I would think feathers for hair are a faunus trait, and if Qrow has them too, then she knows she has faunus blood.