https://wccftech.com/mortal-kombat-11-brings-crossplay-to-ps4-xbox-one/

Mortal Kombat 11 has had a new patch today and it's now another of the games bringing crossplay to the PlayStation 4 and Xbox One versions of the game, continuing the erosion of the walls blocking players from actually playing together.

Of course, NetherRealm and Warner Brothers can't be normal though, because it's actually called Krossplay - see what they did there? You can actually read through the whole Krossplay FAQ right here, though even before I've had an actual read of it, I can imagine what it's going to say: PlayStation 4 and Xbox One owners of the game can now face off against each other.