Yea I still think it's the gift he will give to Naruto, possibly before he edo tensei is even released considering he was already a legend while alive, and he didn't have kyuubi inside of him. Or if not, he will just give it to him when they finish the batles. I'm rooting for him giving it to him before the fights over, just to see how powerful naruto will become. Besides, he's hokage level and its not like he can die anyways. Not much need for him to keep it if he can double his sons strength