Sony will announce the title during its E3 press conference later today, according to Forbes.
Described as a '3D adventure', the game will feature either stereoscopic 3D support or environments that will be fully explorable.
God of War 4 was recently rumoured to be in development for release in 2012.
Three God of War games were released in 2010; God of War III and God of War Collection on PlayStation 3, and God of War: Ghost of Sparta on PSP.
Starhawk, Twisted Metal, Uncharted 3: Drake's Deception, Ratchet & Clank: All 4 One and Resistance 3 have also been confirmed for showings at Sony's conference tonight.
Sony's E3 2011 conference will start today at 1am BST / 10pm EST / 5pm PST.
> Digital Spy's E3 2011 Coverage
> Feature: E3 2011 Predictions