The Vice President of PR and Marketing at Bethesda, Pete Hines, has revealed that the developers have no intention of sharing anything else about Fallout 4's story. Until November 10th rolls around the only tidbit of information on the game you'll hear would be from dirty leakers and who knows if those guys can be trusted.
Speaking with IGN, Hines opened up that he “would be stunned if we said anything else about the story ever again. We’re going to let everybody experience that in the game as much as possible.”
While Fallout 4 is expected to have mod support on the PC, Xbox One, and PlayStation 4, it's not going to be available at launch… In fact, it's not coming until next year. That might upset people a bit, but if you want a good game — that's what it takes. Bethesda is working on the game itself, full-force. There's no room for them to be looking elsewhere.
“I can tell you with all confidence that right now the team is one hundred percent focused on the game itself”, explained Hines when questioned on addition game content. “Mod support, DLC… That’s all nice, but if we don’t deliver an awesome game by November 10th our DLC plans won’t matter and our plans for mod support will be irrelevant. We have to deliver a great game. That doesn’t mean [the dev team] haven’t spent some amount of time thinking about what they might do [for future DLC], but honestly that’s not a focus for anybody right now.”