There are always possibilities Mr Spock used to say.

It is true here. L&P can DLC (Or just place them in suspension) some of the paths and be upfront about that as he pares the story down to get it moving.
He is not too far down Morello path. That can be DLC'd, The Coach Sophia path has already been tossed in that direction I believe. The Bennet path can be DLC'd (or terminated with extreme prejudice) I am not picky here.

Aiden can be brought to a standstill and slipped into a DLC after this update. Dylan can be in semi permanent isolation at boarding school for DLC finish.

The trip to the horse ranch, etc... all different ways to regain control of the story and focus it. Plus DLC's allow him to keep adding elements that have never even existed. He can easily keep the story going for years by using DLCs or whatever you want to call it.
However, if he stays bogged in a 1/3 of a day release sequence, there ultimately won't be a point. The end game will pass by everyone's graves and the updates or DLC's will be for descendants. DOH!