Here's my best guesses...1) Mikayla loses the Duel and is eliminated from the game
2) Upolu wins RC/IC7
3) Ozzy is voted out to RI
4) No, The Savaii will not learn that Brandon is Russ's nephew. Mikayla is too reserved unless provoked to bring it up in the short exit moment JP provides.
5) No, Rick will not have a confessional. You couldn't pull one out of him w/dental pliers. The 'Plan' at Savaii will be the huge focus this episode and SEG editors will milk it for all its worth. Time is money, especially in TV.
6) Yes, Whitney will have a confessional albeit short. This episode is about the 'Plan' and she will likely have a reaction to it in a SEG strategy prop-up for her story arc. As will most all Savaii. E7 is all about the set up for E8.