She doesn't have to be a berserker, she can be just as she is. Harry or Eb told the other Wardens on the first day of the PT that some of the Vikings were berserker's, didn't say all.
But I do agree that her coming back anymore than what she was healthy would cheapen the character. I could see it done in a way because of how far she has fallen, but I has to be done right.
I was being a little sarcastic about the berserker element, sorry about that.
Today hasn't been the greatest day and the vision of Murphy foaming at the mouth wildly going after bad guys left, right, and center, seemed kind of funny.