If Ed Boone's tweets and the speculation around them are to be believed, then NetherRealm Studios may be working on a Marvel vs. However, Mortal Kombat series creator Ed Boone might be teasing a huge project - one that would see two long-time comic book company rivals cross over. The studio following its previous pattern would mean Injustice 3 is on the horizon. With Mortal Kombat 11seemingly wrapping up its DLC cycle with Mileena, Rambo and Rain, plenty of rumors are circulating regarding what NetherRealm Studios' next fighting game may be.