It's fun to watch & make predictions/hope, but making a long term assessment of a 19/20 year old based on 2 or 3 summer league games is almost always impossible.
Better to relax and just enjoy the game.
That being said, I'm really looking forward to seeing Jordan Nwora play this season, after an impressive stint as the best guy on the Nigerian Olympic team, decent advanced stats as a rookie, and a very nice summer league.