Board Thread:Mortal Kombat X/@comment-1084762-20140624043237/@comment-1084762-20150313141759

"Though we don't know the full contents of the pack, it'll apparently include two "Klassic Mortal Kombat Kombatants" that are still in development, Jason Voorhees and a further guest character later on.

Additionally, it'll come with the Samurai Pack, which includes three new character skins: Ronin Kenshi, Samurai Shinnok and Jingu Kitana, as well as an accompanying skin pack with each playable character. This will be available to purchase separately at a later date."

Kenshi confirmed.