Catan: Logik Rätsel is a set of forty logic puzzles in four levels of difficulty that challenge you to build trade routes, avoid robbers, and use knights to protect merchants, although based on the cover it appears that you're employing ten-year-olds to figure everything out.
This item is co-published with Asmodee studio Mixlore (as is Ticket to Ride: Track Switcher), bears a €30 pricetag, and is due out in September 2021. As with that earlier title, this item won't have a listing in the BGG database since it's a single-player logic puzzle and not a game. Anyone interested in re-hashing the arguments for why it should be included is invited to read all my responses in that earlier post.
• In terms of game-related CATAN material, in October 2021 KOSMOS will release CATAN: Zusatzmaterial für Das Duell – Bonus Box, which includes material to expand CATAN: Das Duell, both in terms of gameplay and functionality: 15 special cards that offer additional strategic possibilities, a dice tower, a point tracker so that you don't have to count icons repeatedly, auxiliary markers, and a tournament mode.
• KOSMOS will add another title to its two-player line with Baumkronen (Treetops), about which I have little information at the moment other than this:
In EXIT: Das Spiel – Schatten über Mittelerde, the mighty wizard Gandalf has sent the players on a crucial mission, so they must embark on an adventure and fulfill his assignments for otherwise all hope dies. Together players visit the locations from J.R.R. Tolkien's "The Lord of the Rings", solve tricky magic puzzles, and support the companions against Nazgul, orcs, and other dark figures.