CD Projekt RED won't be releasing any more mod support for The Witcher 3, and it looks like modders are stuck with the current toolset.
A few days ago CD Projekt RED enjoyed unanimous praise from PC gamers upon the release of The Witcher 3's modding tools...at least until the modding community realized how "light" the toolset is compared to The Witcher 2's beefier REDkit.
"First of all, the modding tools we are releasing are not an editor," CDPR told Gamespot in a Q&A session. Instead of creating and editing world spaces gamers can extract and manipulate the files of the game, including adding custom textures and skins to characters as well as changing up animations and sounds. Plus modders can manipulate Witcher 3's scripts, opening a lot of potential for mods that tweak gameplay aspects like difficulty modes and altered quests. So far the Witcher 3 Nexus is filled with HUD alterations, graphics optimizations and small in-game convenience tweaks.