It's an undeniable fact that a good modding community is essential for the longevity of a game. Neverwinter Nights, an 18 year old game, is still getting played by people to this day and it is because of the hard work of talented modders and dungeon masters. These people have spent countless hours of their free time working (for free) to improve the game they love. Some of the campaigns and persistent worlds made by these modders and dungeon masters are better then the campaigns made by the company itself (in fact I'd argue that the majority of them are better).
It occurred to me, why aren't these people getting paid for their hard work, how much more good content could we have if modders and dungeon masters could make their passion projects into a legitimate career, or at the very least, make enough money that they can take more time off from their normal jobs to work on what they love. Maybe even employ other professionals to improve their content (voice actors, level editors, 3d artists, writers, musicians).
My suggestion is that you create a platform where this can become a reality. Add a section to your website where content creators can sell their hard work as DLC to those of us who desperately crave it. Naturally your company can and should take a percentage of those profits in order to continue your future development of the game.
You have created a fantastic campaign world and game, with a sourcebook (that I really want to get my hands on), why not give content creators a platform to make a career out of adding content to this world. How many years will people be playing this game if this is a reality; 18, 25, 30 years? I don't know but I want to see it.
I don't think this would stop the normal trend of people doing free modding for the game, for those worried about that, but it would give us access to some potentially incredible professional level premium content that we might not otherwise have access to.
What are peoples thoughts on this, I'm definitely aware that my idea's are not always popular or practical, but hopefully this one is one the community can get behind.