I saw many of you mentioning the neglect to the Byakugan. First, Madara's history lesson DID mention Byakugan. So6p's children split into Byakugan and sharingan, so sayeth Madara. As far as Sharingan being the only one save Rinnegan being able to read that tablet? No Byakugan has tried, so we don't eally know what they would see. Madara will of course say that Sharingan is stronger... It is our nature to take overwhelming pride in that which makes us special.
The tablet is in Konoha because Konoha was built around it. Uchiha helped found Konoha, chances are Madara knew where it was then and insisted on the location.
Yes Naruto is Senju. Yondaime was Senju, and Naruto was his son.
Nagato has to be related, possibly many times removed, to Uchiha and or Hyuga. Only way he could possibly have Rinnegan. Since his family was not part of any shinobi village it is entirely possible that their eyes never manifested. Generations spent in seclusion and the bloodline forgot it's origins. Than, one night of fear and Rinnegan's back. Perhaps a marriage of Uchiha and Hyuga? Recombining the genetics to reawaken Rinnegan, only problem there is, as far as I know, Hyuga eyes are always white. Kinda stands out.
Training with KillerBee would likely do nothing for Naruto. KillerBee and his Bijuu have come to a form of agreement. Naruto and Kyubii would have to come to an agreement of their own. Possible considering Kyubii has a begrudging respect for Naruto. Plus, Killer Bee would probably drive Naruto to suicide. Just sayin.
Madara's space/time technique seems similiar to Gaara's in one regard. I believe it's an always active defense operating independently. Danger comes, it activates. Hashirama Senju was a very smart man, or so we have been led to believe. I think the injury Madara referred to was having his Sharingan sealed so this ability may be unrelated, something he acquired seperatley from sharingan. This would explain why he wanted Sasuke and Itachi to grow their independent strengths. Combine their eye's to replace, or combine, with his and... renew him so to speak.
The ability Itachi gave to Naruto he gave to him to face Sasuke. I think everyone is overestimating it. One went so far as to claim he gave Naruto Sharingan. I think, and keep in mind this is my opinion, it was merely something to make Naruto prook against the mangekyo genjutsu. Think about it. Naruto has been notoriously susceptible to genjutsu, and this is the most powerful genjutsu seen thus far. Even Kuronai, who is supposed to be a master, was no good against it. Not cool I know, but it makes the best sense.
Itachi may have given his eyes to sasuke allready but I doubt it. This theory is based around us not knowing if the eyes have to be physically removed or not. Perhaps it is a chakra thing and as he died, itachi transfered his mangekyo to sasuke, however I highly doubt it.
That last part leads into this part, I think Madara has bit off more than he can chew with Sasuke. I base that comment on this. I saw a page that showed all ms side by side. Madara's original MS had 3 points in the form of small circles, his brother had 3 points in the form of bars reaching from the center out. Madara's EMS has 6 points... more or less. 3 circles, 3 bars. Itachi had an MS that looks like a 3 pointed shuriken, Kakashi's is quite similar. (For those of you saying they never said how Kakashi acquired the MS, they kinda did. Loosing someone precious to you. Obito died when he got sharingan, than the girl shortly thereafter, and then Yondaime, his sensei, several years later. Any one of these could have done it.) Sasuke's MS is quite different. 6 points right off the bat, although you could argue that it's 3 ovals. When he takes Itachi's eyes ( you know Madara kept em) he'll have a 9 pointed EMS. I'm saying basically it's possible he's got more internal potential than Madara. Also keep in mind, another theory, Orochimaru worked with Madara for a time. Possible Madara knows the eternal life jutsu and just wants Sasuke for his body (Please check your luggage as your mind exits gutter).
Madara has no relation to that prick Danzou. Madara was around, and probably in his mid 30's, when Konoha was founded. Danzou grew up with the third before challenging him for the title of Hokage. He most likely obtained his sharingan after having root swipe the corpse of that Uchiha Itach killed for his MS(forgot his name).
Most likely we will have another time break soon. No Naruto will not be Hokage. I bet it will come up, but he said once "How can I be Hokage if I can't save one friend?". Even if it were offered he would turn it down. He won't accept till the Sasuke deal is done. Danzou will most likely get ousted at the election due to his actions at the summit. Maybe Kakashi will take the reigns, but I doubt it. Tsunade will come out of her coma soon, but be too weak for the role due to that whole, saving the village, thing. Madara and Sasuke will but heads, but Sasuke will hang out since Madara is the only person left who can teach him to use the MS. It'll be interesting to see how Taka responds to Sasuke after the whole... left.... for dead... thing.
Anyway... my prediction, brief wrap up, than a time split, training, and a new Gaiden. I vote for Minato Gaiden. Maybe Madara Gaiden, but I would really like to know more about Naruto's pappy. Oh, and maybe we'll finaly se Naruto get THE kunai's.