Okay. Newbie here.
Well, just to clear it out though, if you have seen the most recent seasons of the race, the flow of the finale episode would be like. routes markers, then a roadblock, as in the case of Seasons 15 and 16. So, on my observation, the bungee jump might well be a roadblock. Following a series of clues to other destinations, leading them to their final destination, which mostly are memory challenges, before going to the finish line. But, there are some cases that they still need to visit other places after the memory challenge, which might be a game changer, since taxi drivers are a crucial part of the entire race.
Hope my observation works! Merry Christmas
in advance, RFF detectives!