It's just regular madara kurama said that extraction of the ten tails did not kill so6p just made him comatose. So I believe this is madara bringing back izuna who will not see things his way making him the new villain.
The boy with sharingan is Hidan. The akatsuki dude dragged him from the grave and implanted uchiha eyes. Now you got 3T Hidan + Tobidara. Its gonna be good.
jk.
The boy is an experiment made from white zetsu + Uchiha genes. Since the boy is mad at Sauce killing Itachi, he might be made from Itachi's genes + white zetsu.
Kishi is starting to steal ideas from Minamoto too ?
Shit man, how low could he go ?
Minamoto you have shown the world that if you believe in an idea, no matter how stupid, long enough, the universe pleb Kishimoto would make it come true for you.
But you should consider, 99.99% you would be wrong and people me would still laugh at you next week
But you have 0.01% chance, better than you had in a long time