James Gunn eyes Harley Quinn for the DCU, with Margot Robbie's return up in the air

In Deadline's account of a podcast, DC Studios co-head James Gunn said he is “almost certainly” going to use Harley Quinn in the DCU. He does not know whether Margot Robbie wants to return; he would work to fit her in if she does and might cast someone else if she doesn't. Gunn also described her history with the Joker as a challenge for DCU continuity.