James Gunn says the future of Margot Robbie's Harley Quinn in his new DC Universe 'will be revealed down the line.'

James Gunn reveals that Margot Robbie's return as Harley Quinn is uncertain amid changes in the DC Universe. Despite her successful portrayal in previous films, Robbie may not reprise her role in future projects.

Following the success of “Superman,” next up for DC Films co-boss James Gunn is the second season of his “Peacemaker” HBO Max series, which returns next week.