I may have commented in this thread before, but...
GURPS does not need a 5th edition.
Maybe a 4.x edition; it does need some fixing, especially in Charisma, Intelligence, as admitted by many fans and creators.
(
https://methodsetmadness.blogspot.com/2016/09/gurps-d-part-i-some-quick-thoughts-on.html).
It would benefit from some kind of SRD, IMO.
And a GURPS "medium-lite" would be perfect for me: "bang" skills, maybe change active defenses slightly to make combat faster, maybe fix the critical hit chart or just give players some guidelines on how to use combat options (e.g., if your skill is greater than say, 14, you should take a penalty to bypass your opponent's defense instead), and definitely some quick armor options, making piecemeal armor as an optional rule.
Heck, I might do my own version if they had a SRD.
BTW, GURPS has several AWESOME books on DTRPG. It took them a while to get on DTRPG, and maybe they should do a sale from time to time, but there are some real gems out there, with a remarkably low number of copies sold (probably because fans get them from SJG's site).