I would advise adding starter in between role player and borderline all star. Also there should be a "star" or multi time all star on this list (as seen above now that ive scrolled lol.) I would put jaylen at that star level. I think if he hits the middle of my projections, he is a 4-6 time all star over his long long career. If he puts all of it together (develops a reliable 3pt shot, gets rid of the yips and actually keeps on finishing, tightens up the handle, works on passing) then he has the defense to be considered a superstar.
If he is unable to put it all together, I see a solid starter (good defender that struggles to finish or hit 3s) or a borderline all star (doesnt look for his own shot as much, but has decent stats and due to our team success makes a couple all star games.) Kind of similar what the recent hawks have been doing.