In an interview on the standalone game Rise of the Inka, Benjamin Teuber has mentioned work on the 20 years anniversary game.
Where do you get the inspirations for new CATAN games from?
Klaus: We both like to take an exciting story and bring it to life in a game. The inspiration for developing a new CATAN game mostly comes from historical events, as with “Rise of the Inkas,” and sometimes from fictitious settings, as with “Starfarers,” or from a novel, as with “A Game of Thrones – CATAN.”
Benjamin: Last year, we started to develop the story of Catan further by means of new games. In the anniversary edition “Legend of the Sea Robbers” we described how the sea robbers came to Catan and made life difficult for the Catanians. On the occasion of the 20th anniversary of “Cities & Knights,” we are currently working on a legend that centers around the Catanians’ struggle against a powerful barbarian army wanting to conquer Catan. As far as the level of sophistication is concerned, it will probably be the most complex CATAN game we have ever developed. Afterwards, we want to create a game that tells the story of how the settlers fled their homeland and came to Catan.
I am a bit curious how the "most complex Catan game so far" will compare to boardgames for other than casual gamers. In my experience, even C&K can still be played and mastered by casual gamers.