I'm fairly confident that she'll come back one way or another. Hardly anyone ever dies, with a few exceptions, and it seems like a lot of effort to create a character and then kill her off two weeks later. They could have used one of the generic NPCs for that.
-pat- There, there. I'm sure she'll be fine in the end ^-^ It is pretty sad to lose her, a girl no less, but since she had so many doubts about becoming a Union leader, she should get a chance to prove herself.