Yes, but is this thing claiming to be her actually her?
Whatever is calling the shots here, it seems to be pushing men towards being masters and women towards being slaves.
The talk of eating brains (775) makes me think the thing is some kind of group mind. I assume Cherry is as familiar with the New York harem as Julian is. And assuming Echo was targeted in the first place because of her association with Adrian, it seems probable that Cherry - or Cherry's mind - would be able to conjure up a version of Echo and know what to do with it. If Erin could meet up with Jakob in Cherry's mind then this certainly seems feasible. It's not clear whether Jakob was any less present in Cherry's mind after that encounter. And regardless, he was there when Cherry unleashed the blood monster, which seems to be the origin of this thing. So was he replicated in that monster? Is he here now?