I guess LeBron can break Kareem's record this upcoming season anyway, as he only needs to score 1,326 points to break it. So if LeBron can score an average of 30 points per game and doesn't miss any games due to injury, he will be able to break that record by the 44th game of the upcoming season. In that case, it will happen on January 16 during the home game against the Rockets.
Yes, that is a realistic thing to achieve next season by Lebron James. Of course, the only thing that will prevent that from happening is being sidelined for more games because of common reasons such as injuries. LBJ also not showing any big signs of slowing down yet that's why achieving 1,326 points should not be that hard for him to reach this season.
Say all the hate to him but being the Top 1 NBA All-Time Points Leader is an insane record that is hard to achieve. There's no player right now that might be closed on doing that in the next 5 years or even a decade.