TBH, it's a bit expected already because that might increase the chances of Le-GM getting that 3-year contract that they offered to him. With the Lakers' help, his dream came true hence, they made history as the first father-son duo in NBA history.
Even though they drafted him, I don't expect him to be in the NBA next season, but at least he can hone his skills in the G-league first, I guess. As for Le-GM, I expect him to not opt in to his final year of his contract to become an unrestricted free agent then he will sign a 3-year max contract with LA as well since they are willing to give it to him.
And so what the Lakers did is a win-win for them, and so Lebron will probably extend his contract with the Lakers and then making the history as we all know off to be father and son, first in the NBA and again, Lebron's record could never be broken again.
Not sure though if he will go to the G-league but that's a good move to really sharpen his skills and test it again former NBA player in that league or other great players trying to improved and make a point and maybe some day they will be given time to go up in the NBA.