"Gotham" Eyes "Suicide Squad's" Harley Quinn & Killer Croc for Future Seasons

Today the executive producers of "Gotham" released details of what to expect in season three. Not only will Fish Mooney be back, but her feud with Penguin will grow out of control. Gordon will continue to struggle with his future, Bruce will begin to embrace his playboy side, and Indian Hill will be explored more in depth. More villains will also be added to the show, which could now include Harley Quinn and Killer Croc. New footage was also released for season three, which highlights these new developments.

According to executive producers Ken Stephens and John Woodruff, Harley Quinn and Killer Croc are being considered for introductions on "Gotham," reports Deadline. These iconic characters will be introduced in a way similar to that of Jerome, who may not be the Joker yet, but all the characteristics are there. Woodruff said, "The Indian Hill that exists in Gotham, that's the bridge to these villains like killer Croc and Solomon Grundy."

Stephens also said there will be more Jerome (Cameron Monaghan) in season three. "It's about developing the myth of the Joker, just like we're developing the myth of Batman. It's so we can stretch him over multiple seasons. The cult of The Joker began, and we'll explore how that deepens and changes this year. There are underground movements where they talk about Jerome."

They also confirmed that Fish Mooney (Jada Pinkett-Smith) will be back for the first two episodes of the season, then she will return in the second half of the season in the spring. Bruce Wayne (David Mazouz) will experience a transformation this season as he beings to embrace his playboy side. He will also cross a line from which he won't be able to come back. On whether or not his double will cross paths with Harvey Dent, so far the answer is no.

Check out the new footage and official synopsis of season three below:

#Gotham returns to it's bad self on September 19 at 8/7c on @FOXTV. pic.twitter.com/7DDFukOrgr- Gotham (@Gotham) August 9, 2016

GOTHAM (Mondays, 8:00-9:00 PM ET/PT) The origin story continues on Season Three of GOTHAM, and the stakes are higher than ever, as Super-Villains more ambitious and depraved are introduced, and a realignment of alliances shakes up the fight for power in Gotham City.

Season Three will peel back the curtain on the infamous criminal organization known as the Court of The Owls. With the Indian Hill escapees on the loose, JIM GORDON (Ben McKenzie) must take matters into his own hands as a bounty hunter in Gotham. He makes it his mission to find HUGO STRANGE (guest star BD Wong), the mastermind behind the horrifying Indian Hill experiments, and FISH MOONEY (guest star Jada Pinkett Smith), one of Strange's subjects. Meanwhile, GCPD Detective HARVEY BULLOCK (Donal Logue) and Captain NATHANIEL BARNES (Michael Chiklis) remain at the forefront of the fight against crime in the monster-ridden city. Also, BRUCE WAYNE (David Mazouz), with the help of his trusted butler and mentor, ALFRED PENNYWORTH (Sean Pertwee), and former Wayne Enterprises employee, LUCIUS FOX (Chris Chalk), discovers there are still more secrets to uncover regarding his parents' murders.

As the city sinks deeper into chaos, GOTHAM will continue to follow the evolving stories of the city's most malevolent villains: THE PENGUIN (Robin Lord Taylor); EDWARD NYGMA/the future RIDDLER (Cory Michael Smith); SELINA KYLE/the future CATWOMAN (Camren Bicondova); BARBARA KEAN (Erin Richards), TABITHA GALAVAN/TIGRESS (Jessica Lucas) and BUTCH GILZEAN (Drew Powell). The series also will catch up with the future POISON IVY (Maggie Geha), who, after an encounter with a monster from Indian Hill, finds herself reborn as a young woman who's harnessed the full power of her charms; and will dive into the origin stories of JERVIS TETCH/MAD HATTER (Benedict Samuel), a talented hypnotist teetering on the edge of madness; and the TWEED BROTHERS.

"Gotham" season three premieres Monday, September 19 at 8 p.m. on Fox.