Probably the best we’d get for story DLCs would be for FO4 or 76 because there’s absolutely no way they’d create new content for a game over a decade old that isn’t Skyrim or the latest entry in another series of theirs that is either fallout or fallout or fallout.
Would absolutely love to see mod makers turn either 3 or NV into a fo1/2 experience because we’re clearly never gonna see remasters of the original at this point.