http://www.ign.com/articles/2015/06/15/e3-2015-fallout-4-to-support-mods-on-xbox-one?utm_source=IGN%20hub%20page&utm_medium=IGN%20(front%20page)&utm_content=3&utm_campaign=Blogroll
At the end of a Fallout 4 stage demonstration at Microsoft's Xbox Press Conference, Bethesda's Todd Howard announced that the Xbox One version of Fallout 4 will support PC mods.
Mods created for the PC version of the game will be transferrable to the Xbox One version of the game.