Interesting, but remember the wall of eyes? I think it could have happened that he stole another person's eye. It is very possible.
Eye Wall:
You must be registered for see images
We also know that he may have the rinnegan, so this would be a lie if he wasn't Madara, forcing him to fear madara's body:
Rinnegan Explanation:
You must be registered for see images
I also found this theory about the coffin being the water daimyo:
Original Topic:
And here is my main theory to what happened here�.
what if the person that kabuto summoned was a person that everyone thought (except madara) was still alive?!?!?!?
better yet� what if it was the water daimyo!?!?!?
ok let me explain.
zetsu or madara kills the water daimyo�zetsu uses his special cloning abilities to clone him�then they control all of the water country including Kirigakure and with akatsuki, kabutos team and kirigakure, madara could possibly wipe out the other nations
one of the reasons i thought this was when all of the daimyos had a meeting, the water daimyo(zetsu) was the only one that was hesistant about the alliance between nations against the akatsuki.
another reason why i thought this was because madara was supposedly mizukage and that sort of ties in with the theory�.somehow lol
resurrecting the water daimyo would shock madara because he wouldn�t expect kabuto to know of the daimyos death.
kabuto also said �dont worry i wont tell anyone�. meaning that he wont tell anyone about the death of the water daimyo, because if any of the other daimyos found out, madaras plans would all turn to shit. which is why madara agreed to kabutos offer.
I do not think it is the sage of the six paths, coz if it was�kabuto wouldn�t need to consult madara about handing over sasuke, he would just get the sage to annihilate madara and get sasuke. where as resurrecting the water daimyo would cause madara to be shocked and accept kabutos offer
but yea, i dunno�its just a theory
well thats mine post your ideas here who was in kabuto last coffin here