There hasn't been any statement claiming that Patch 7 is the last time any changes will be made to dialogue or cinematics, so there's always the possibility that more things people want can be added to the game. All we know for certain is we aren't getting brand new stories in either dlc or sequels.
I hope that we get some kind of patch that wholly focuses on finishing and fleshing out exisiting companions that have been neglected and their quests. That would be a dream patch personally. I think it is possible that they could do that, although I would not hope too much. Maybe I'm being too optimistic.
As I understand it this isn't currently possible as they no longer hold the rights to the companions. And they've said they're finished with narrative content. They would have to revisit their dealings with wotc if they were to implement changes like this and they've been clear they have no plans to do so now or in the future. They would have to change their minds about moving on from the game to enact any real narrative, dialogue, or quest changes.
That's why the disappointment in their decision to leave the game behind for good is a central topic of the thread.
