Well, barring that neither team wins the FF, looks like the Hippies are safe. Also, MoJo will probably advance to the finals without ever winning a leg (all they have to do is place 2nd or 3rd), while E/J don't and they've won the most. Seeing all three teams at the RB is pretty scary, but it's still E/J's game to lose. The big ?'s are: How the team that didn't win the FF manage to catch up, and how MoJo manage to catch up.
The more I think of the blue adidas, the more I'm feeling the pain that E/J are the decoy team. However, what would be helpful is knowledge of when they arrived or were spotted in Alaska (what date), and at what points in the past would a decoy team run a decoy race before they have to be back in End City. If E/J were in fact spotted the day before the end of the race, there's a chance that they are safe. It's just the fact that the sighting is so accurate, but right now it's difficult to tell whether or not E/J make it through this leg. From the looks of the previews, they weren't breaking down, but were struggling, which leads me to believe that they've got the 4th-place edit.