As you can see at the Bottom left of page 15 of chapter 598 Narutos Face is disfigured and resembles Tobis Mask, so he could be Copying Narutos Face and when it is revealed next week Tobi will look like Naruto confirming he is a Zetsu Clone?
As you can see at the Bottom left of page 15 of chapter 598 Narutos Face is disfigured and resembles Tobis Mask, so he could be Copying Narutos Face and when it is revealed next week Tobi will look like Naruto confirming he is a Zetsu Clone?