Interview with Sherilyn, Michael Horse, James Marshall
Well Lynch left it with many possible endings. And thats it. BUT if he continue, some of them ofcourse will lost sense. I don't see any sense of continuation with "Laura sacrifice, Judy destroyed theory". If someone belive that, it is over. End of a story. I bet that season 4 would be about Cooper failed in Odessa and last scene in ep18 was cliffhanger. Something goes wrong. Laura whisper something new to his ear and season 4 starts.