With Jerome returning to Gotham and possibly (most likely) becoming The Joker, everybody is dying to see Harley Quinn in the show. According to the executive producer John Stephens, we might see the clown princess of crime sooner than we thought.
Stephens talked about the character in a new interview, and said “We might see [her] in Episode 22.” According to reports Harley will be the launching point for the plot of Season 4, so get ready, Gotham fans. Stephens assured that, “It’s crazy.”
It has been teased that a character would debut, who would be a “forerunner” for Harley Quinn, meaning that she may not be recognizable as Dr. Harleen Quinzel when she first appears.