Nice to see someone else taking interest in the Lord of the Rings. The books are actually quite interesting. However, if you come to the books after watching the films, you will have both moments when you will feel the book has more details, and also moments when it feels lackluster compared to the films. Like for example the books have more room for world-building. However, events like the big battles are described in a rather small number of pages, and leave a lot to be imagined (for example, the famous Battle of the Five Armies that was expanded to an entire film literally takes 5 pages in The Hobbit book, while the battle of Helm's Deep, despite having a whole dedicated chapter in The Two Towers, is like just half the chapter at most). I think I can reach a balance in which there are some details from the books I prefer over the film adaptations, but also keep some of the visuals from the films since hey have become quite iconic and feel they would fit.
Indeed, Return of the Jedi does give that feeling of "this is the end of the story". I think it also worked extremely well in 1983 since there was no plan for expanding the story after that point. However, I personally really like the way the story was continued in the old Expended Universe (aka Legends). Somehow, that story feels quite natural, with the Empire starting to divide among warlords in the power vacuum caused by the death of the Emperor. I also like the original Thrawn trilogy, while Dark Empire gave what I think to be some of the most badass imagery (both depicted and explained) in terms of the the Imperials fighting among themselves for power just before the reemergence of the Reborn Emperor. I am talking right now about the Imperial Civil War and battle of Coruscant as seen in the opening panels of the DE comic adaptation.
The Imperial Civil War is a very interesting image to me. It brings a feeling of apocalypse, especially with all the warlords suddenly turning on each other after conquering Coruscant from the New Republic. And now you have a catastrophic battle on the surface of the planet, while vast armadas tear each other apart in space, and you also have the Emperor releasing his hidden fleets from the planet of Byss against the galaxy. This description on the beginning of the conflict remained with me for quite a while:
As a bonus: a lot of new Imperial tech came out of these comics. The Procusator and Allegiance class Star Destroyers, the World Devastators, the Eclipse and so many unnamed space and ground vehicles that more or less found their way into the guide books like the Essential Guide to Warfare.
I never really knew what sort of game Nier is. The only thing I could associate it with was the character 2B, which for quite a long while I did not like since she basically looks like a horny/fanservice version of Youmu (tell me if Youmu and 2B do not look quite similar). Oh yeah, and that fact that apparently the creator of these games is not only OK with lewd art of his characters, but he actually encourages it/looks for it and said something like there's more than he can go check out. However, it would be interesting to find out more about these games.