the last man in the coffin kabuto showed madara was???????(warning major spoiler) xD
well from what i saw....madara was horrified when he saw the person inside last coffin that kabuto showed him........he called kabuto a monster and that how did he knew.......so what or who could it have been that scared madara that much????????? my guess is it was either madaras brother that gave madara his eyes(note: madara truely loved his brother and what he was doing uptill now was seekig revenge for his brothers wasted sacrifice) .............OR maybe kabuto found and summoned the body of the Rikudu senin the first mage who had the rinnigan and developed all the nija techniques.............its only gues but the possibility of the person inside the last coffin being either of these two is much more than it being the 1st ort 4th hockage or somebody else??? wat do ya guys think??????