User blog comment:AK151/RWBY Villain Speculations/@comment-11188061-20140707123741/@comment-16241789-20140707150410

Also very possible. The line regarding Roman is definitely in-line with what I think. With regards to Emerald and Mercury, I think we have to see how they interact with each other first. All we've seen is interactions between Roman and Cinder, aside from the scene in the Volume 2 trailer with Cinder on the balcony overlooking her underlings. That scenes almost gave me a bit of a Captain Ahab feel, where Cinder's got her own agenda that no one knows of, not even Emerald and Mercury. So it could very well be possible that those two were picked up after she went rogue (because I am quite certain she's a Huntress, at least; where else would she learn to fight to well?); either that, or they may very well be old acquaintances of Cinder's. I guess there's nothing we can do but wait...