It's never too early to start your homework. Coach Mike Krzyzewski is known for being able recruit the best prospects to Duke. Last season he coached a loaded roster led by superhuman Zion Williamson. While Coach K has already reloaded his roster for next year, that isn't his only focus; he's not limiting Duke's scope.
Bronny James won't be playing college ball until 2023. With the on-going conversation on ending the one-and-done rule, he might not even go to college, but you gotta respect the commitment from Coach K.
According the NY Post, Bronny has already received an offer from the Blue Devils along with several other schools, so it makes perfect sense for Coach K to be trying to get the upper hand. His connection with LeBron through their time together in multiple Olympics has already earned him The King's approval.
James Jr. still has a lot of development left to work on. Bronny doesn't have the same hype surrounding him as his father, but you can fully expect Coach K to be keeping a close eye on him.