At this stage, nothing is known about the sequel, however, it's been given a G rating and includes General Online Activity.
Based on the first title, we can take educated guesses as to what's coming in NBA Playgrounds 2.
https://powerup-gaming.com/2018/04/17/nba-playgrounds-2-classified-australia/
The first wasn't the greatest reviewed game, but I do find it to be a good alternative to those who aren't a big fan of NBA 2K or NBA Live.