Oh I'm keeping up apskip, I just didn't think that an experienced poster like you would take that as strong evidence. Those things are always included in episode descriptions.
I do think it's possible for there to be a non-elimination on Sunday, just highly unlikely as they will most likely want to have one mor episode with four teams as opposed to two episodes with three teams because "The final three" is usually what the finale is known for. In past seasons when ever the final non elimination was during a F3 it was always a two hour finale.
Actually both season 1 and season 4 were down to the final three on episode 12 and both had non elimination rounds and leg 13th aired the next week.
Season 1: Episode 12 aired 12/05/2001
Season 1: Episode 13 aired 12/13/2001
Season 4: Episode 12 aired 08/14/2003
Season 4: Episode 13 aired 08/21/2003
Now of course season 2, 3, 5, 7, 8, and 9 Were all 2 episode blocks with a final three in both.
And season 6 was a two hour block with a final four in the first hour and a final 3 in the 2cd.
But were those schedule choices (air as a two hour segment compared to two single episodes) made before filming or afterwards.
Was it an editing choice by the producers are was it a request from CBS based on how it would best fit with CBS schedule?
Not saying that synopsis was accurate (they often are wrong), but it could be factual based on previous seasons.