How you tweak it for your personal viewing is up to you. You already can run it through AI tools to add detail or smooth effects or even turn it into a cartoon if you want to.

Will take some time, will use a lot of energy, will require a decent card or a lot of credits but this can be done today.

Personally I don’t think anything will improve it, as I don’t care for it already. Just had to say it as your claim it’s the best trilogy ever is subjective. Much like the results of processing it with AI.