will he get his hairline done?
he could do it easily as hair transplants have been sort of perfected now and many actors and celebrities now have better hairlines than years ago.. from the more obvious ones (Hanks, McConaghey), to the not so obvious ones who've always had really good hair and you wouldn't think have had anything done have probably had a HT to reinforce the hairline (Cooper, Clooney)
With Law the rest his hair behind the Norwood 3/4 hairline seems thick so plenty of hair to use for the hairline to bring it back to the Mr Ripley norwood 2 era (and no real issues with future loss if on finasteride).
I wonder if JL will do it.. or maybe he's not bothered.and maybe even considers it a plus for film roles and can wear a frontal hairpiece for roles where he has to be the leading man type (like Connery used to do)