From his latest blog:
Jeff wrote:It'll probably be something lame like the tribe that loses has to vote off two people, or they do two IC's in one episode or something. Thought it was interesting still though.
SIDE LINE: For the record, I have always hated the "win or lose, you must vote someone out" twist, but it's existence comes from necessity. Let me explain: We would prefer to start the show with only 16 contestants. It's much easier for the audience to get to know 16 people. But it gives us no wiggle room if someone quits or has to leave the game due to medical emergency.
If we start with 18, that gives us a bit of breathing room in terms of numbers but also gives us an uneven number of men and women on each tribe.
If we start with 20, as we did this year, it gives us plenty of wiggle room for quits or medical evacuation, but because we have 4 extra people we have to get rid of them at some point. Thus the "win or lose, you're voting somebody out" scenario. I am happy to say that we have since figured out a better way to do double eliminations. So should we ever need to vote out two people in one episode it will not be a "win or lose both tribes going to tribal council" scenario.
I'm also retching at his
validation of 20 person casts being that they have "wiggle room" when someone quits or medivacs. 
