Just of note, the proposed U23 rule wouldn't be in effect until the 2020 Olympics.
The 2016 Olympics in Rio de Janeiro are unlikely to be 23 and under for men's basketball, according to a source.
The NBA has publicly expressed interest in working with FIBA on a World Cup of Basketball.
But passage of a new rule in time for the 2016 games is unlikely.
Sources say that the NBA has not changed its strong interest in eventually creating a World Cup, with the target being the 2020 Olympics.