[Rob!]

Toothy said that the twist has something to do with fake friendships...my guess is that two housemates will be chosen to come to the diary room and will be told that they are king and Queen and are therefore safe from the first eviction. Whilst they are being told this in the Diary room, the other housemates will be being secretly told in the living room that they must appeal to the King and Queen as one of them will be chosen to be safe as well. The King and Queen won't know about this until the moment of choosing. Well, that's what I'd do. Except I'd just call two housemates to the diary room of THEIR choosing.