NetherRealm always releases a "Komplete Edition" or "Ultimate Edition" 12-18 months after launch. For Mortal Kombat 11 , the Aftermath collection went from $60 to $15 during sales. Mortal Kombat 1 will follow the same pattern.
More dangerous are the executable files labeled MK1_Unlocker_Setup.exe . Security researchers have analyzed many of these. They often contain: mortal kombat 1 dlc unlocker