Sources said Zion Williamson is not expected to return to play this season, but that he is making progress toward on-court work. So far, Williamson has been seen doing stationary shooting and is able to bear weight on his injured foot. New Orleans has 11 regular-season games remaining, which leaves an improbably tight window for Williamson to complete the team’s ramp-up stages ranging from one-on-zero to five-on-five scrimmaging.