The NFL wants to move games along, to help keep millennials from moving along to something else. The new rule book explains exactly how that will happen following a score.
A “Note” inserted after Rule 4, Section 6, Article 2 (who said the rule book is too long and complicated?) states that, after a post-touchdown try or a field goal, “the teams will have 40 seconds to align prior to the ball being made ready for play,” and that "[w]hen the 40 seconds have elapsed, the 25-second play clock will begin.”
This provision won’t apply when a commercial break happens following a try or a field goal.
It means that the kickoff and kick return teams will have to be in place before the 40 seconds expire, and that at that point the 25-second window for kicking off shall start. Which means that 65 seconds will be the maximum lag from score to kickoff, and that it could be a lot shorter than that.
Which means that, if you’re going to hit the bathroom between score and kickoff, you may want to put a TV in there.