Okay got it, and below is the adjusted expectation:-
Potential U-21:-
-Least potential of star
-Age 18 must have at least 4k weekly salary
-Age 19 must have at least 5.5k weekly salary
-Age 20 & 21 weekly salary have to be close with U-21 players
Potential NT
-Least potential of superstar
-Weekly salary below 10k must be at most 20 yrs. old
-Weekly salary below 25k must be at most 22 yrs. old
-I will also list the players with the weekly salary close to NT players(50k and above)
Actually, I think anything could happen with the players weekly salary after player salary update, it depends mainly on the training that they received the whole season, I'll just list out base on above expectation in case they're needed, and I'll go through every managers roster in the league I'm in charge again to see the changes.