I personally vote for an endgame style epic conclusion and go with a three hour book six. It will feel anti-climatic I believe the other way and Din without Grogu for all of book five is gold. I love the new scene previews enhanced with AI and I believe they mostly work as is. The imperial theme playing while the box is opened could be axed in my opinion. I really like the world building of the Moff Gideon news reel Dr. Perishing is listening to. The AI use for the armorer mostly works and I honestly could not even tell you what was edited in the droid bar scene as I believe I have only seen most of season three once (perhaps saying to turn the music back on).

Like others have said, I think with season four in the distant future and a season two of the Book of Boba Fett unlikely you go for a three hour epic for the conclusion of this series. It can always be reassessed in the future if you want to incorporate the upcoming film into this series. Ultimately, this is your baby and I trust your decision, but that is the way I believe I would wrap it up. Can’t wait to see the finished product!