Broken Steel fixed a lot of the problems with the original Fallout 3's ending and it also added a lot of content which fleshed out the Enclave's conflict with the Brotherhood of Steel. Would anyone be interested in something similar for Fallout 4?
Things I could see being done would be:
* Ending Slides when you complete the Broken Steel 2.0 Campaign.
* The chance to command your faction after end-game and make changes or decisions based on what you do now that you have real influence.
* The chance to marry one of your romantic partners.
* More advantages related to your role as leader of one of the Factions.
* anolyzing the Fallout from your decision and quests related to whichever faction you destroyed.
What do you think?