A new God of War HD remake-bundle may coming to stores next month, according to Siliconera. God of War Saga Collection - not to be confused with God of War Collection or God of War Origins Collection - will likely include all three primary God of War games in one package.
God of War: Ascension, A prequel to the God of War trilogy, is coming to PS3 March 12th, 2013.
God of War Collection, the current PS3 GoW bundle, includes God of War and God of War II, which were both initially released on the PS2. Presumably this version will at least unite the trilogy in a single set.
According to the report, God of War Saga Collection will come to retailers in late August.