Are you thinking about the original PlayStation 2 game that was remastered in 2009's God of War Collection? I don't believe that version was ever brought to 3D. If you're talking about God of War Origins, however, like the other set this will remaster the two PSP releases (Chains of Olympus and Ghost of Sparta) to HD and 3D code on September 13, 2011.
You can find out more about the game here at Amazon: http://www.amazon.com/God-War-Origins-Collection-P
Then again, if God of War III is the one you have in mind, and this being a game from another region, then yes there does appear to be a God of War III game out there in Platinum capacity bearing the 3D logo on the box... if the discussions in this thread are any indication: http://community.us.playstation.com/thread/3876341