It appears that Electronic Arts is preparing to step into the Octagon once again, as a PS4 listing for EA Sports UFC 4 has been leaked by PS4 Patches, a website that tracks game updates uploaded to the PSN database.
As spotted by Gematsu, PS4 Patches discovered a new entry titled “Magnum” which, upon further investigation, contains a game icon for the UFC 4 “Community Feedback Environment”, thereby leaking the existence of a new entry in EA’s MMA simulator.
Source: Destructoid UFC 4 listing leaks on PlayStation 4 patch database