My friend who works for cbs told me that after the eviction for 16th there would be a double and then at final 14 everyone gets split into dynamic duos and 2 duos from the past join the game
Duo 1: Michelle Costa/ Jesse Godderz
Duo 2: Shelli Poole / Clay Honeycutt
apparently its duos till final 12 where the remaining houseguests split into trios and
Jun Song / Alison Irwin/ Erika Landin join the game