To see how Robert Hewitt Wolfe -- who developed this series, but was forced out around the time Trance lost her tail, and the series went to pot IMO -- would have had it play out, go here and read "Coda":
http://www.rhwolfe.com/Insider%20Info.htm
That is a kick butt way for the series to play out. Way better than the way it has gone since RHW was forced out.
The series went south when RHW left. It all wasn't bad but not nearly as good. I am only starting season 4, but the first season and a half were way better than the rest.
I just read it. It was pretty good.