After reports of mod support not coming to Fallout 4 on Playstation 4, Bethesda have announced that PS4 Pro and mod support will be coming to The Elder Scrolls V: Skyrim and Fallout 4.
Mod support will release for Skyrim first and will allow Playstation 4 owners to create mods using Bethesda’s Creation Kit. You will not be able to upload external assets, but you will be able to use any assets that come with the game.