There have been a variety of projects announced for the character, including a possible solo movie, a movie with Joker, and Suicide Squad 2, in addition to Birds of Prey.
While David Ayer’s Suicide Squad was a critical disappointment, Robbie’s Harley was a scene stealer who helped buoy the uneven project.
Margot Robbie’s comments to Pride Source further illustrate how major Harley Quinn is going to stay within the DC Universe.
The actress is planning ahead, so perhaps one of these movies will also bring Poison Ivy into the narrative.