He could be Izuna

[Edge]

CORRECTION :
Its "THEM".

Spoiler

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the one who knows everything (according to Sasuke) are his parents.
But there is a possibility that Orochimaru will pull out Izuna too. Since he had Madara's dna, he might have Izuna's dna as well in his pocket.

Even Madara's dna was not in Uchiha district but still Oro found out (not from he Uchiha district), didn't he?

I'm starting to think this at well, but wouldn't Sasuke have more of an emotional reaction if he learned he could bring back his parents in some way? Or perhaps learning the truth about them from Obito changed his opinion of them.

Either way IMO I think it'll be:

1) More than one person
2) Re-animated Uchiha

 

[alexu9696]

Some facts that should point towards him are
1) Sasuke decided to go meet "him" after he heard about Madara
2) Sasuke said he needed Orochimaru for only he could help him meet "him". That means the guy we are looking for is dead because the only other thing that only Orochimaru can do is pull a snake out of his ass (literally )
3)the guy we are looking for is most probably an Uchiha since the only places Sasuke knows very well are the Uchiha district, some irrelevant places in Konoha (they are not there) and Orochimaru's lair (not there either).
4)Sasuke wants to know about the clan and the village and about whether his decision to be against it is correct or not. He has already heard Itachi's opinion, his father's opinion, Madara's and Obito's opinion, even Shisui's opinion. The only guy who took a decision back then about the clan and the village is Izuna (we don't know even that for sure).
5) Izuna is a guy from the past that knows everything about the past situation with Madara and also about the clan (he was the leader's brother) and the village (he was the co-founder's brother).

Only problem with all these is the fact that there shouldn't be any Izuna DNA in the Uchiha district so as to Edo Tensei him..right? Or maybe not? Where is that guy buried after all?

Tobi should have been Izuna , the one who knows everything will be a huge asspull.... si its not izuna

 

[edo tensai wilmaso]

he wasn't tobi and he's not gonna be the guy that knows everything. it's probably shisui ...izuna was part of the clan but i think he died before the village was created.( itachi just told sasuke that shusui had the same feelings towards konoha.. that doesn't mean that sasuke knows those feelings..feel me?)

 

[Frankenstein]

he wasn't tobi and he's not gonna be the guy that knows everything. it's probably shisui ...izuna was part of the clan but i think he died before the village was created.( itachi just told sasuke that shusui had the same feelings towards konoha.. that doesn't mean that sasuke knows those feelings..feel me?)

Oh come on.. "All we are sayyiiing is give Izuna a chaance"

 

[Kuzomothekiller]

I think its with out a doubt, sasuke's parents. Pedomaru is gonna edo tensei them.