Mutiny- Once per round after tribal and before the immunity challenge one person can mutiny (swap over to the other tribe) if they feel uneasy about their position in the game (Lasts up until the merge)
Special Idols- Winners of immunity will be given hints about how to find special hidden immunity idols! (Lasts throughout the game)
The third twist is a post-merge twist which will be revealed when the time comes!
http://www.tengaged.com/group/6570/forum/topic/15269194