Wait until the next game.
They'll do the same thing to her that they did with Hitomi. Why? Because Japan.
Speaking of "because Japan", why do so many Japanese stories have to include a character with amnesia? DOA had it with Ein, but even now, after he already discovered his identity and we should be done with the whole amnesia thing, they still had to implement this lame fucking element in the new game by making a whole new character who suffers from amnesia. Why? I don't get it. Oh yeah, because Japan.