i think that is possible but i don't think Sasuke will be as easy to talk down like pain was it would be a huge battle until he wakes up and understands were Naruto is coming fromSasuke is in the DARKNESS, Naruto and Sasuke will team up to take down Madara from achieving the Ultimate Bijuu.
That's an ambitious thought there ;D but the 3rd is weak, and the sage of 6th paths is practically what Madara is looking to become anyways but not necessarily, if you know what I meanlol Minato will come back from the dead and the 3rd hokage will fight the revived sage of six paths the original one lol
yea i seen it in the manga something about him putting the Rinnegan in pain and he has this weird mask/staff after acquiring the rinnigan i think its something with all the ocular style jutsu maybe he might even have the Byakugan, are you a bleach fan too bleach is not as good as Naruto but it's interesting....another good one is gundamn zero and lelouch of the rebellion zero whatever its called