The current timing rules are, "Timing starts on pressing begin after character creation and ends when the credits start playing." In previous versions of the game, credits started playing right when you hit "End" on the final dialogue sequence of the game, but with The Final Cut, there's a long animation that plays before going to credits. Since there's no player input after pressing end, I'd suggest that the timing rules should be, "Timing starts on pressing begin after character creation and ends on pressing end after the final dialogue sequence." None of the old runs would have to be retimed, since it's only a relevant difference on current versions of the game.

Thanks for the info, I updated the rules like you suggested