Even if she lives, she kind of has to be left behind, because the city needs her there for its defenses to remain intact. So it's unlikely she'll remain a major character after this arc, whatever else happens.
But the Chaos Barrier is generated by the Sword of Re (isn't it?). And either Leez or Yuta is hours/days from taking the Sword of Re. Since it's unlikely they're then going to live permanently in Kalibloom, Teo's Chaos Priestess/Chaos Barrier duties are about to come to an abrupt end.