Is probably just in case this season does well and people want to see more of this format... This season still has the chance to be critically acclaimed, highly watched and overall loved by the people who demands more of TAR.
There is always a chance to bring back the concept of blind dating teams and incorporate it in different ways, maybe two superfans who met each other during the interview process. Who knows... don't take it as a locked concept until we see them race through an airport.