Board Thread:General Discussion/@comment-25202904-20141108163948/@comment-25074378-20150111141614

I doubt she left because she found something controversial about someone. If that's really the reason that she left her daughter behind, I'll be severely disappointed with Miles' and Kerry's ability as writers. If Yang's mother is still alive, she had to have had a major reason to leave and not tell anyone, not even Taiyang, or her disappearance would have been out of her control entirely.

We also don't know if Raven is related to Qrow, whether by family or simply by association. Even if Raven is related to Qrow, that does not immediately make her Yang's mother, as it has never been stated whether or not Qrow is Ruby and Yang's uncle by blood or by a familiar relationship as someone who helped raise them.

What I do know is that Miles and Kerry watched several anime to prepare themselves for writing RWBY, and what I've found from watching several anime myself is that you never rule anything out until the details have been laid out and set in stone.