No, not everyone has to die to exit stage left. Jedi are smart people. They would adapt to their threat of exinction and would learn how to blend in and vanish. I think she should go missing in action and never be acounted for leaving traces of her death behind. if writers over do death to satisfy a bloodthirsty audience who believe that death is the only way out of a story it would be really bad taste. I haven't followed TCW after the movie but I thought she was too cute and lovable to put down and of course because she was Anakkin's padawan, that was on my mind. What would be more dramatic and meaningful to the story would be if she had a moment of self-discovery and epiphany that resulted in her maturity and vanishing after confronting Anakkin about something, but I can't imagine what until I sit through the series.