First I'll start with a hearty hello since I am a new member here 
I've been reading the forums lately and I decided to post what has been in my head for a while now.
I will ask you not to troll/flame/hate me because all that I say is possible no matter what.
I read some threads where people said something about Zetsu being "part" of Tobi in a way that he recovers his body and such. Just like Tobi's fight with Torune and Minato. Well I had something similiar in mind but then again I have something even more intriguing up here.
Orochimaru. Look here:
www_narutobase_net/manga/Naruto/592/13 ( Can't post links yet...soz but replace _ with .)
Sasuke refers to the one who knows everything and in the next page he claims that is Orochimaru. If I am right. Now here comes my theory. What if by some way Orochimaru managed to recover Obito's body and sharingan probly for himself but then ended up Tobi taking that Sharingan?
Since many people said its impossible ( due to Obito's right side being completely smashed ) this is a possibility. And since Sasuke decided to meet Orochimaru during the war. It can be related. I am not quite sure what I think and what I want to say but you should be able to understand it, there is a possibility that Tobi has Obito's eye thanks to Orochimaru and thanks to Suigetsu who found the scroll, Sasuke might find out the trust about Obito.
Also, to those that claim Tobi will be a new character not known by anyone. Now, that is impossible. Tell me 1 succesful movie/anime that had the main villain be just some random guy. That kills the thrill. Even if you were wondering who it was up until the reveal of the main villain's identiy...the thrill after that will still be gone. There will be nothing to think about. And what makes a book, film or anime interesting - the thrill and blind guesses, that is.
It is also possible that Madara created Zetsu ( using that ...idk how to explain it. I just know Tobi has Hashirama's body underneath his lair so its possible its his "legacy" from the real Madara. ) with the whole purpose of finding a worthy candidate of unlocking the Rinnegan and reviving him.
Also one more thing. Many people say Obito can't be Tobi because Timeline doesnt match. But you forget Tobi's voice hasn't changed over 16 years ( from Kyuubi's accident up until current timeline in the manga ) and his jutso is after all Space-Time. There is some chance he couldve teleported back in time ( Ye ye I know, if he could he wouldve done so many things to ease his task with gathering the jinchuurikies, but maybe it has some sort of a requirement or condition or something. )
There you go
I hope you like it and have a nice discussion alongside me and my theory.
I've been reading the forums lately and I decided to post what has been in my head for a while now.
I will ask you not to troll/flame/hate me because all that I say is possible no matter what.
I read some threads where people said something about Zetsu being "part" of Tobi in a way that he recovers his body and such. Just like Tobi's fight with Torune and Minato. Well I had something similiar in mind but then again I have something even more intriguing up here.
Orochimaru. Look here:
www_narutobase_net/manga/Naruto/592/13 ( Can't post links yet...soz but replace _ with .)
Sasuke refers to the one who knows everything and in the next page he claims that is Orochimaru. If I am right. Now here comes my theory. What if by some way Orochimaru managed to recover Obito's body and sharingan probly for himself but then ended up Tobi taking that Sharingan?
Since many people said its impossible ( due to Obito's right side being completely smashed ) this is a possibility. And since Sasuke decided to meet Orochimaru during the war. It can be related. I am not quite sure what I think and what I want to say but you should be able to understand it, there is a possibility that Tobi has Obito's eye thanks to Orochimaru and thanks to Suigetsu who found the scroll, Sasuke might find out the trust about Obito.
Also, to those that claim Tobi will be a new character not known by anyone. Now, that is impossible. Tell me 1 succesful movie/anime that had the main villain be just some random guy. That kills the thrill. Even if you were wondering who it was up until the reveal of the main villain's identiy...the thrill after that will still be gone. There will be nothing to think about. And what makes a book, film or anime interesting - the thrill and blind guesses, that is.
It is also possible that Madara created Zetsu ( using that ...idk how to explain it. I just know Tobi has Hashirama's body underneath his lair so its possible its his "legacy" from the real Madara. ) with the whole purpose of finding a worthy candidate of unlocking the Rinnegan and reviving him.
Also one more thing. Many people say Obito can't be Tobi because Timeline doesnt match. But you forget Tobi's voice hasn't changed over 16 years ( from Kyuubi's accident up until current timeline in the manga ) and his jutso is after all Space-Time. There is some chance he couldve teleported back in time ( Ye ye I know, if he could he wouldve done so many things to ease his task with gathering the jinchuurikies, but maybe it has some sort of a requirement or condition or something. )
There you go