They should go FIBA rules on timeouts. Ball has to be dead. Timeouts come from the bench beforehand.
The best thing about going 4 quarters would be resetting the fouls.
The negative that I see about the fouls at least in the women's game is that there is no one & one, It is strictly a two shot foul was gives a poor free throw shooting team a chance at one point instead on none if they don't make the first free throw.
Good point. They could keep it the same. It would be the same as high school basketball.
One other thing I forgot to mention with quarters. End of clock situations become a bigger part of the game.