The new NMD CtL supplement, Book of Courts, is out. It gots more on the seasonal courts, a chunk of new entitlements, 4 additional courts groups with contracts, some stuff about what happens when the seasonal courts don't change, and then an appendix of mechanical updates for some of the other courts in other books.

If you have Book of Seemings, or the new Carthian book you can get a discount.
https://www.drivethrurpg.com/en/product/527524/book-of-courts