My Tobi is not Obito theory.

[Zetta]

Ever Watch/Read Full Metal Alchemist?

No, but wouldn't that be considered a Filler plot? I know naruto has them. But It eventually leads to original ending of the manga plot

[placeboshotgun]

Not in FMA. It actually isn't filler proper, it's more of an alternate storyline, after a certain point the manga and anime diverge completely and the FMA manga isn't finished, it's still going as strong as ever and I think will have a much better ending ....I hope.

Notable changes:

Spoiler!

Hoenheim is one of the seven fake humans whose proper term I cannot recall at present.

Winry has been openly shown to be in love with ed and Ed is strongly hinted to reciprocate (neither has confessed yet)

Al can do alchemy without a circle

Scar is still alive

Their mother is not one of the seven that thing is dead

They never actually revived their mother anyway because the soul is beyond alchemy

Lust got fried by the flame alchemist

Homunculous each have a philosopher's stone in them

Anime wrath doesn't exist

The fuhrers son is a homunculous

Envy is a giant dog/lizard monster thing who weighs an ass load.

Gluttony has/is a false door to the other side (it actualy leads inside him) the only way out is to create a real door to the outside which does not lead to our world but some freaky realm where Al's body is waiting for him. It's where they met 'god' who took they're parts in the first place on the night of the failed human alchemy.

and many more, go read it, it's good.

[Alterno]

Or Maybe the anime took her from the manga and decided to give her a lil back story as a filler?

ok i re-read the chapter, NOWHERE does it mention Matsuri, just a couple of random female shinobi's. Your assuming thats her right.

She is in fact Matsuri, you'll see that now in the anime. just keep an eye open. People google for masashi kishimoto that you should give you an idea of the way he thinks. If someone has the interviews from Anime expo please post them.