Sony confirmed at their E3 2018 Showcase that God of War (our review) will be getting a new game plus mode. Sony boss Shawn Layden announced the mode during the intermission of their Showcase. Sony put up a few details regarding the new game plus on their PlayStation Blog.
According to Sony, the addition of New Game Plus has been the most requested enhancement across all social media and forums and thus they are doing this to answer the fan request for this feature. Sony confirms that you will carry over many of your upgrades and acquired items through Kratos's quest in God of War and that the difficulty will be vastly increased to match, stating you may indeed need a fully upgraded Leviathan Axe from the start of the game if you wish to soak your path in blood to victory again.
With the changes coming in God of War's new game plus, this is the series's first foray into new game plus territory. God of War 1 and 3 both offered the option to play through the game again, just in different costumes. God of War 2 contains the substantive "Titan Mode," which is the hardest difficulty unlocked after beating any difficulty once. Still, you don't start with all your weapons and upgrades, and are essentially playing through the same game again. Sony does not have a patch date locked down for God of War's new game plus, but they and the Santa Monica studio will have more information and a date as development progresses.
If you want to know more about this and other announcements happening at E3 then be sure to check out our E3 2018 Coverage Hub.