Where shall i start...
1)16 years ago 9tails attacked Konoha, controlled by Madara.
2)After some time, probably 6-7 years Itachi met Madara and made a pact with him, "To take revenge on the clan, but not to harm the rest of the village"
3)After that, Uchiha Shisui was killed by someone, the Konoha police force came to Itachi's house with "Shisui's suicide note"
4)The next thing we see is that Itachi rages out and attacks them.
5)Next, the uchiha massacre happens.
6)We know that Madara was the former Mizukage.
7)We know Uchiha Shisui's power, We know that Danzou has an arm and an eye oh Uchiha Shisui, We also know that some people think previous Mizukage was actually controlled by jutsu, similar to uchiha shisui's.
Btw. we also know that Shisui was also known as Shisui of the Mirage.
Now, here are my thoughts about it all. The first suspicious thing is why all-powerful godly Uchiha Madara would make a pact with Itachi? My guess is that Controlling 9tails was madara's last resort to take revenge on Konoha, and after that he somehow lost his EMS or the ability to awaken it. So he took an opportunity to kill all uchihas without EMS. However before the Uchiha Massacre he assassinated Shisui together with Danzou, and each of them took an eye from him. Now it was said somewhere, that in MS, one sharingan controls genjutsu, another controls ninjutsu. Danzou got the genjutsu eye, and madara got the ninjutsu eye, which allows him to move at unbelievable speed and avoid all attacks. This pretty much explains why Danzou has only one sharingan, and why there's only one sharingan on Madara's face.
The other thing is that Itachi didn't kill Shisui and only when he heard of his death and he knew who it was, he awakened MS. It was still not completely developed though, but this gives us explanation to how the MS is really awakened, and it is when one feels he lost somebody dear to him. This also explains how Kakashi got his MS.
And i also doubt that those "secret writings in uchiha meeting place" about killing your best friend were real, i can hardly believe that Madara and his brother killed their friends (and they were the first ones to awaken MS), and all these "secret writings" are fabrication of Madara to take his revenge on Uchihas.
Now, for the last part: Itachi's gift to Naruto.
In my opinion, what Itachi gave naruto is not some weapon or jutsu, but a knowledge of Shisui's jutsu and the way to counter it. Here's some logic: What can be passed on through genjutsu? Definetely not a weapon or something physical. Information is the most possible thing, and imo that's exactly what it was. I think Itachi knew that Naruto won't need his help to turn Sasuke back, but he will need help fighting Madara.
There is one fatal flaw in your theory, both Danzou and Madara posses a Sharigan in their right eye. Shisui didn't have two right eyes, so one of them would have to have his left eye.
Also, what would be the point of putting it an alternate socket if you have the option to put it in the correct socket?
Maybe. Whatever, this doesn't actually affect your theory in any way, I was just pointing that out.
With Danzo stealing parts from Uchiha Shisui it helps explain how he was appointed to be the 6th acting hokage as as long as Tsunade is in a coma. Does anyone have any predictions to make about her?
itachi's gift to naruto would be sword of totsuka and yata's mirror...both non physical objects can be passed via genjutsu...he didn't want sasuke to be sealed for eternity...so he checked naruto's resolve b4 giving them...
Last edited by ForMotherRussia; October 03, 2009 at 08:54 PM. Reason: Automerged Doublepost
From Itachi's words, when he said that he hoped that Naruto doesn't have to use his gift, I assume that it's something that can be used against Sasuke. Maybe it's not something serious. Maybe Itachi said it just because he hoped that everything eill be resolved pecefully between Naruto and Sasuke.
Anyway, I think Itachi transferred some type of Genjutsu into Naruto, which supposedly activates while Naruto and Sasuke are fighting. Maybe it's a message for Sasuke from Itachi, something similar to Minato inside Naruto. Remember, Itachi never told Sasuke everything. Madara conveniently filled the blanks for him.
Also, maybe it's a genjutsu that will erase Sasuke's memory completely.
I'm sure it's something that is supposed to bring Sasuke down. My guess is that Itachi had foreseen that he'll fall under Madara's influence.
isn't it said here, that yondaime mizukage was a guy called yagura?