Oz will begin to remember Luffy's memories with the scooby gang, um I mean the Straw Hats. Which will make him defeat Moria so Luffy's bounty doesn't raise once more, for a while at least.
Since Oda did the classic foreshadow of Oz saying, "I don't know you guys." at the end of the chapter to Ussop's remark. Meaning that Oz eventually will remember and etc.