Warner Bros. and DC is moving full-speed ahead with their shared cinematic universe. With several confirmed films, and a few unconfirmed, the DC Extended Universe hits full steam next year with Batman V Superman: Dawn of Justice, which will eventually lead into the first Justice League live-action film. Wonder Woman, The Flash, Aquaman, Shazam, Cyborg, and Green Lantern will all have their own solo films thereafter.
However, the DCEU may not stop growing there. DC already has one advantage in Wonder Woman, the first female superhero film, but it looks like DC is eager to expand the female superheroes in their arsenal - possibly leading to a female superhero team-up film down the line, according to fresh rumors on the matter.
Latino Review reports that there are two front-runners to join the cast for either Zack Snyder's Justice League Part 1 and/or Part 2, as two DC Comics characters who traditionally take on the Black Canary persona at different times (Dinah Drake and her daughter, Dinah Laurel Lance, respectively). Black Canary, of course, is a superhero with martial arts prowess and a devastating sonic scream attack, and the two front-runners is question are supposedly Alona Tal (Burn Notice, Supernatural), and Abbey Lee (Mad Max: Fury Road), both of whom look the part.
The idea, according to LR, is that Black Canary's inclusion in Justice League will help set up an eventual female-centric team-up film later on - namely, one centered around the Birds of Prey. The Birds of Prey, for the unfamiliar, are a female-led team that generally involve both Black Canary and Barbara Gordon/Batgirl - who, as rumor has it, might be the character whom Jena Malone (Mockingjay - Part 1 & 2) is playing in Batman V Superman. The Birds of Prey were also previously featured in a live-action television show, produced in 2002, that lasted for one season before being cancelled due to low ratings.
We've already seen Black Canary in the ongoing TV show, Arrow, played by Katie Cassidy. The character currently enjoys a solo comic, and remains an overall fan favorite. If this rumor is true, Black Canary would come as a welcome addition to the Justice League roster. Plus a female-centric superhero team-up film like Birds of Prey would be a refreshing change from what we currently see in the genre and stand apart from other upcoming confirmed DCEU installments (all of which revolve around male superheroes outside of the Wonder Woman movie).
Batman V Superman: Dawn of Justice opens on March 25th, 2016; Suicide Squadon August 5th, 2016; Wonder Woman on June 23rd, 2017; Justice League Part 1 on November 17th, 2017; The Flash on March 23rd, 2018; Aquaman on July 27th, 2018;Shazam on April 5th, 2019; Justice League Part 2 on June 14th, 2019; Cyborg on April 3rd, 2020; Green Lantern Corps on June 19th, 2020. Untitled Batman and Superman Solo Films will be coming at dates TBD.
Source: Latino Review