I'd agree the whole wormhole macguffin had been beaten to death at this point; but I have confidence that maybe the Farscape writers had some pretty neat stuff lined up for the final two years.
Agreed. That's why I think it ended on a high note, rather than going for a few more seasons and potentially overextending its welcome.
But admittedly I'm not that sad as Farscape does seem pretty whole in its current form... though I still wanted to see Rygel reclaim his throne, damn it!
Yeah, that would have been cool. Oh well.