WBIE has confirmed more DLC is being developed for Mortal Kombat X for release in 2016:
Today Warner Bros. Interactive Entertainment confirmed that NetherRealm Studios is developing new downloadable content (DLC) for Mortal Kombat X, the best-selling game of 2015 to-date according to US NPD. The new content will include new playable characters, skins and a new environment, all of which will be available in the first half of 2016.
Mortal Kombat X is NetherRealm Studios’ most recent installment in its legendary, critically acclaimed fighting game franchise that propels the iconic franchise into a new generation. The game combines cinematic presentation with all new gameplay to deliver the most brutal Kombat experience ever, offering a new fully-connected experience that launches players into a persistent online contest where every fight matters in a global battle for supremacy.