User blog comment:Maria Trimble/Death in Supernatural Shows/@comment-4280498-20130615193726

I don't think Erica will come bck to life because her death could can be held over Derek and Scott's head. With the Alpha Pack being deadly as they are it would show that they mean business.

One more point, it gives a feel that if something goes wrong there is always a chance of someone dying. Erica would be a great symbol of that.