As far as the Farscape guys go... I suspect, if given creative freedom and the option to be showrunners of a show they create (which has an inbuilt fanbase to boot), it wouldn't be such a bad prospect. If JMS was chomping at the bit for an opportunity, I wouldn't be surprised if they or others of reasonable talent can be interested.
jms' work in this vein has been derivative - to be kind. I don't rank him anywhere nearly as highly as the "Farscape" folks or Whedon either as a writer or producer. I'm not too surprised that he'd want Trek, nor was his proposal for a Trek series any better than the mediocrity one would expect from his previous space opera shows.