Had a weird thought today and this is probably the best place for it -- didn't want to start a new thread.
With the new rule changes that give more advantage to defensive players and allow more physical defense, I think we may swing back (were we ever completely away from it?) to a big man league. Players like Giannis, Embiid, and Jokic will become even more valuable than they currently are. Big men who can get reliable looks in the post will become a staple of NBA offenses again.
I expect this to take a few years, and it will never go completely back to the way it was before (thank goodness), but great offenses will stretch the floor out past the three point line and pound you inside with post play, rather than stretch and drive. The entry post pass will become more of an important skill set, and offenses with quick actions, backcuts, etc. like the Warriors will take root more and more.
Any time a rule change happens, the league reinvents itself and the best strategies/players for that rule set eventually rises to the top. These rules clearly take away some of the benefit of driving to the rim as it is more difficult to get foul calls. How will teams get reliable looks in the paint? It has to be players with a variety of reliable post moves that can get good looks inside.