If Spencer, Kimmi, Jeremy and Tasha stick together for the next vote wouldn't they be pretty stupid to not split the votes between Keith and Kelly in case one of them has an idol?
My guess.
Next Tribal Neither Jeremy or Wentworth win immunity. Keith wins Immunity.
Spencer, Jeremy, Tasha, Kimmi vote for Wentworth. Keith and Wentworth vote for Jeremy.
4-2 all votes are cancelled.
Re-vote, but cannot vote for Jeremy, Wentworth or Keith.
Spencer, Jeremy, Tasha and Kimmi must vote for one of their group (besides Jeremy). Would be some major scrambling at that point.