This The Witcher Q&A on The Witcher Vault chats with Mateusz Kanik, asking the team leader on the D'jinni project about progress on this modification toolkit for CD Projekt's action/RPG, learning this will lead to additional official content for The Witcher as well as mods:

Yes, of course you can expect official adventures under the auspices of CD Projekt RED. For instance we are releasing first official adventure with patch 1.3. You'll be able to play totally new quests placed before story of the game. We want to support our modding community as much as possible so we will be releasing our modules too. We also will try to show some hints, tutorials and so on. You shoulnd't be dissapointed at all!