Bethesda has learned from the mistake they made with Fallout 3. This time around we aren't going to be restricted with a level cap or a forced ending.
To our fans who’ve asked: Fallout 4 doesn’t end when the main story is over and there is no level cap. You can keep playing and leveling.— BethesdaGameStudios (@BethesdaStudios) August 6, 2015
While November 10th may be the start of your Fallout 4 experience, it appears there never has to be an end.