It's not like this hasn't happened before. You would think the flood gates would have really been open in 2001 when 3 of the first 4 picks were high school kids. But you still had guys like Carmelo, Chris Bosh, Chris Paul, going to college.
Even with the change in eligibility requiring one year out of high school, you still have a long list of top guys staying in college more than a year: LaMarcus Aldridge, Brandon Roy, Rudy Gay, Al Horford, Joakim Noah, Russell Westbrook, Blake Griffin, James Harden, Steph Curry, Gordon Hayward, Paul George, Kemba Walker, Klay Thompson, Kawhi Leonard, Damian Lillard, Victor Oladipo, Marcus Smart, Buddy Hield, Domantas Sabonis, Donovan Mitchell, Ja Morant, Tyrese Haliburton.
So don't think it's going to be the deathblow to college hoops some think it will be.
It will be interesting to see if drafting has changed/evolved at all with the style of the league changing. 99% of the high school players that were drafted into the NBA were 6'5" or taller. Telfair is the only guy shorter than 6'5" drafted in the first round (Monta Ellis and Lou Williams also shorter than 6'5" but drafted in the 2nd round). Wonder if this will change significantly at all.