It's possible but I'm doubting it. Reports have gone out stating that the ending went as planned and he was not expected to kick out of that third F5 regardless. Sure, it's possible they're just saying that to give people less to talk about, but I have a feeling that was their big plan to end the streak... three finishers.

Granted without the concussion the match would have flowed a lot better and maybe had more "holy shit" moments, but at the end of the day I think it still was going to end after the third F5... even though Cena can kick out of 30 Rock Bottoms the year before. yikes lol