User blog comment:Jekkoi/RWBY Vol 2 Episode 1 thoughts-(spoilers)/@comment-24994749-20140725011749/@comment-25090813-20140725030213

I thought that too, Blake is pretty skilled as well so I can see her as a valued member whos absence would be noticed. I could see Adam returning as a result of this.

But then again she may have left before Cinder took full control over White fang, Plus going after a beacon student would be wayyy too risky (unless that is one of the reasons Mercury + Emerald are undercover at beacon)