Following a string of reports and leaks, Warner Bros. Interactive Entertainment today officially announced Injustice 2, a sequel to 2013's Injustice: Gods Among Us. It's scheduled to come out in 2017 for PlayStation 4 and Xbox One in 2017.

Developer NetherRealm, which made the first game, is also behind the sequel. The game promises a "massive roster" of DC superheroes and villains. Two of these are Batman and The Flash, who were featured in the leaked poster and are in the announcement trailer.

In a statement, NetherRealm boss Ed Boon said Injustice 2 will include "new features that will change the way fans play fighting games." He also teased that the game will push the genre forward in the area of character customization and more.

"Injustice 2 offers the latest DC fighting game experience that expands on the previous title's larger-than-life showdowns," reads a line from the game's official description. "Every battle defines you in a game where players personalize iconic DC characters with unique and powerful gear earned throughout the game. For the first time gamers can take control of how their characters look, fight and develop across a variety of game modes."

The sequel also continues the story of the first game, which was set in an alternate universe where Joker unleashes a nuclear bomb on Metropolis and tricks Superman into killing Lois Lane and his son. In response, Superman establishes himself as High Councillor of a World Government and begins a dictatorship. Batman leads a group of rebel forces and the heroes and villains of the DC Universe are forced to take sides.

For Injustice 2, Batman works together with his allies to "[put] the pieces of society back together while struggling against those who want to restore Superman's regime." And that's not all.

"In the midst of the chaos, a new threat appears that will put Earth's existence at risk," NetherRealm teased.

Injustice 2 will offer the largest DC roster ever in a fighting game, Warner Bros. said. Some of the confirmed characters so far include Batman, Superman, Supergirl, Aquaman, Atrocitus, and Gorilla Grodd. As for the arenas, these have "evolved in scale," and will take place in locations such as Metropolis, Gotham City, and Atlantis.

The first Injustice: Gods Among Us was released in April 2013, for Xbox 360, PlayStation 3, and PC. An Ultimate Edition featuring improved visuals and all post-release downloadable content was later launched for PS4.