Like Stellaris, I think that if possible, the previous DLCs should be revisited and kept up to date to provide better cohesion and to add things that make sense. Example: Giving The Norse a new and specific court room if one’s owns Royal Court and Northern Lords. Another aspect of this would be to fix some issues that have remained a problem like Fate of Iberia and it’s struggle system for example.
#CK3 Custodians
agile pier
odd forum
They could call it the Regency Team