Naruto Shippuuden Episode 221-222

[Killa-Eyez]

Even a great nin-jutsu practitioner like Oro can make mistakes. As have been said, the seal the 4th used on the Kyuubi is the same used by the 3rd on Oro. So the same had to have happened to the 4th, the user's soul is sealed also. We don't know what Oro did to acquire the 4th's resurrection so the coffin could have been empty as well have been occupied.

Oro failed to complete the summoning jutsu so we'll never know.

Edit:

I don't believe being sealed in such a matter makes it impossible to be used in the resurrection technique.

Maybe not impossible if the seal is unsealed. Yet we have not seen anything like that.

And I definitely agree that Madara is not quite the Madara we thought he was. His response and Kabutoro's play on words with 'calling yourself' seems hint enough. I doubt it is Obito as well: yes, the eyes match and it has never made sense to me that Madara keeps one eye hidden, but we can confirm that Madara is pretty damn old just by looking at the back of his head that one time. Too old to be Obito.

I do not recall seeing this. Which ep was this or do you maybe have a screenshot?

As for Oro's hands I believe I have an explanation for that: when Sasuke devoured him, some part of Sasuke had to actively suppress his will. We saw what happened when Sasuke was tired: he lost control and Oro took over. That make me believe that Oro's soul is not actually in the body but is a part of Oro's inner world (where we saw him confront Sasuke). He simply overpowers the will of the bodies original owner and so no piece of Oro was actually sealed.

I think you could be right on this. Though Sasuke's situation was a bit different since Sasuke devoured him and not the other way around as it's supposed to. It does explain regaining hand jutsus.

[Artris]

I do not recall seeing this. Which ep was this or do you maybe have a screenshot?

Upon further inspection, I suppose he could be Obito if you assume that is scaring we see. He does share Kakashi's powers (affinity for lightning and similar Sharingan ability), as well as having a matching eye. Toss that in with the 'that won't work on me' he suggested to Kakashi and maybe it is Obito.

Still, it doesn't fit his character at all. We saw very little of him but still, I would be very surprised if that were the case.

[Killa-Eyez]

Was this the ep where Sasuke was retrieved by Tobi after he defeated Itachi and they're in some hideout?

[Artris]

Was this the ep where Sasuke was retrieved by Tobi after he defeated Itachi and they're in some hideout?

Yeah. 140 I think? Somewhere around there.

[DarthEnderX]

He does share Kakashi's powers (affinity for lightning and similar Sharingan ability)

When has Madara shown to have a lightning ability?

[Artris]

When has Madara shown to have a lightning ability?

May be a bit of a stretch, but this is episode 125 before the closing credits. Doesn't mean much though, we don't know Obito's affinities.