With the official modkit coming for Fallout 4 some time soon, it appears as though official support for the Steam workshop, which at the very least offers a way to organize and keep track of mods, for the game is also in the cards, and slated to be added to the title soon.
Reddit user ZEEENIK noticed earlier today that Fallout 4 recently received an update, which is 0 bytes big, so a placeholder patch; however, it makes one change, with the image attached to the update for the game showing the Steam Workshop logo. This indicates that Steam Workshop support for the title will be coming some time soon in an update- either that, or someone jumped the gun big time.
Of course, Steam Workshop support for Fallout 4 is not an outlandish idea at all- earlier Bethesda titles, like The Elder Scrolls V: Skyrim, have also supported the feature. And while the Nexus already exists to keep track of mods for Fallout 4, I am sure a lot of less enterprising players won’t mind a more readily accessible and immediate solution to their modding needs at all.