"Star Trek: The Motion Picture" Gets a 4K Remaster for Paramount+
gizmodo.com
gizmodo.com
I saw the original version in theaters and loved it, probably because I was was a kid and so happy Star Trek was back.
Watching it years later I finally understood that it could have been better
As for why it wasn't remastered at 4k, let alone 1080p back then, my guess is that the cost of rendering CG above DVD resolutions was a major factor.
The director's cut is still kinda languid, and it's still got a lot of gorgeous long special effects shots that won't look nearly so impressive 40 years later on a TV screen rather than a movie screen. (Even though some TV screens have gotten pretty big in the last decade.)
The cut is definitely better. It fleshes out some of its side stories, and it moves better. The effects should look pretty nice in 4K: it's all analog stuff that should scale well. And being analog they hold up surprisingly well (where CGI usually seems to feel awkward in just a few years).