If the subject line hasn't frightened you off yet, I'll keep this brief. It just occurred to me that the first three season finales of Farscape mirrored the endings of the first Star Wars trilogy.
I think these parallels help explain the popularity of the Farscape's first three seasons and why season 4 seems to be a little directionless. Farscape appeared to be telling a grand story that had familiar rhythms. I do think that by the end of season 4, Farscape got it's "Plot On" by setting up an almost certain war between the Scarrans and Peacekeepers. We'll never know now that Farscape is gone.