3) Zatanna
Not to be confused with the similar-sounding but actually completely different character Katana, Zatanna isn’t a heroine usually paired with the Birds of Prey. However, she is a DC female character who is currently being given the short straw in terms of adaptations, even though she really deserves her time in the limelight. Hopefully, then, the Harley movie can find a place for her.
[zergpaid]Usually a member of the Justice League – oh, yeah she’s one of the big guns – Zatanna is a stage magician who also has the gift of real magic, being a powerful sorceress. So far, DC doesn’t seem to be shying away from the mystical side of its universe, as Suicide Squad will feature the aforementioned Enchantress. If that character gets a go, then, it’s surely just a matter of time before Zatanna does too, right?