Well, nobody knows. That is why we share our opinions based on what we see.
Problem here is that you and
@Schmeichels pinky for example use his age for prediction and some of us use his current abilities.
By your standards Gore, Amass, Wheatley...are all future stars then? Because we don't know what their ceiling is but they are all young.
For young players potential/ceiling is judged by current abilities which are "base" for future. Answer me finally what exactly are Hojlund's traits based on which you think that he "has great potential"?
Superb technique?
Excellent ball control?
Strong in air?
Ability to get in chances?
Dribble?
Hold up play?
Strong shot and good pace is hardly something which can be called as great potential.
Saka, Foden, Mainoo, Garnacho, Gvardiol......those were players for who you could say "they have great potential" when they were 18. Hojlund is not in that tier.