Injustice:Gods Among Us has two new DLC costume packs announced Red Son 2 and Blackest Night 1.
Red Son 2
The Red Son 2 pack features new costumes for Batman, Green Lantern, and Deathstroke. These costumes are based of the successful Elseworld title Superman: Red Son written by Mark Millar and penciled by Dave Johnson and Kilian Plunkett. No release date has been announced yet.
Blackest Night 1
The Blackest Night 1 pack includes new costumes for Superman, The Flash, and Doomsday. These costumes are based off the Green Lantern story arc Blackest Night by Geoff Johns . No release date has been announced yet.