Another speculation is that why it seems no one is thinking Caroline/Jennifer may u-turn Bates/Anthony? It seems foreshadowing last leg that they realize it's time for them to break the alliance with the hockey players when it's almost to the final. I would not be surprised if it turns out that C/J u-turn B/A and then J/M may have a chance to u-turn M/K to save M/B.
I wouldn't be surprised if C/J U-turned B/A if it came down to the wire.
Also, has anyone thought of a scenario where some teams didn't use the U-turn?
And another thing I've noticed: Is it strange that there are no press pics of J/M? There is a picture of every team doing a detour except for them. I don't know if that means something, but it could be that the producers didn't want to give away who got U-turned.
Another thing I was thinking about was Mona and Beth's detour decision. Aren't they normally wanting to do more physical detours? Could it be that they had originally did the "barrel rolling" detour and got U-turned which forced them to do the "haggis" detour?
If we speculate that J/M and M/B both got U-turned, this would put both teams at the roadblock at the same time (as seen in the promos).