Twist: Pre-known Tribes
At the beginning of the season, everyone is told when tribe swaps will occur and who will be on the resulting tribes (regardless if they are voted out or not).
For example:
Alex, Bob, Cam, Dallas, George, and Hannah are playing.
Original Tribes at Final 6:
Tribe 1: Alex, Bob, Cam
Tribe 2: Dallas, George Hannah
Tribe Swap at Final 5:
Tribe 1: Alex, Cam, and George
Tribe 2: Bob, Dallas, and Hannah
Tribe 1 goes to the first Tribal Council so Alex and Cam vote together against Bob. Then, in the tribe swap, he is taken out of the equation.
Resulting Tribes:
Tribe 1: Alex, Cam, and George
Tribe 2: Dallas and Hannah