Now that I think of it, that would make sense as we saw her first using her sword during the fight against WoD (Warriors of Darkness) (Soul Surrender patch 3.4) which was released 9 months ago and we hadn't received any news regarding RDM and their magicked crystal medium at the time.
She might be the one after all, but highly unlikely still. (As the trainer/job NPC, not as RDM)