always had this idea for a 'council of Jons' in my head... all the same person but in different forms stuck in that state for the rest of their lives... Not too sure what their stake is yet. I suspect they are looking over things on a much higher plane though and have to accept the fate of certain worlds... whims of chaos is a cause and effect story, by human will as opposed to accidental changes.. Michelle's first act to divert a river is symbolic of that too... that being said, an accident will happen because.. where did the river go?
Michelle and Tiffany's names are no accident either... ;) its all in the nature of their magic...