@RS
Wow your explanation of the revival of jubi is the best. I agree the reason jubi will be resurrected is because that would be the biggest threat to the shinobi world and this story would tell how they overcomed it. By defeating Madara only, I don't really feel the epicness in that. The jubi's revival is like the ultimate calamity that naruto's world can face and it being a reality would be a really epic story. On how they defeat it we'll rely on Kishi to come up with the best ending.
Anyway isn't RS's sons ancestors to uchiha and senju, and uzimaki being a sibling clan of senju? Meaning RS is essentially the "Adam" of the powerful shinobi clans, all originating from him.
Thanks DK, and don't forget it's not a rehash of what RS had to overcome. Because of Madara being in control of the juubi the threat will be much larger. And i have no doubt that the only person that will be able to overcome this threat is Naruto, which will rally everyone behind him. Think of his Konoha celebration except on a much larger scale. It's that what is needed for Naruto to be able to change the whole ninja system which is the root of all the problems, Naruto will break the cycle of hatred by uniting everyone behind him. That's why i don't think Naruto will simply become hokage, eversince part 2 the title Hokage has been downgraded severly. We've seen corrupt,evil,misguided,ect kages. No kage of any village has ever been able to do what Naruto plans to do, that's why i believe Naruto will become the Fourth and true RS. As Madara said, he Madara was the second, Nagato was the third. I hope we are not close to the end as there is still so much more we need to see. I love mangas that last long and we see the characters grow and evolve.
So far it's revealed that Uchiha clan's origins come from the older son of RS that received his eyes and believed power was the way to true peace. And Senju clan's origins come from the younger son of RS that received his body and believed love was the way to true peace. We know very little of the Uzumaki's and i think we'll learn a lot more in the future. What we do know is that they were feared for their fuinjutsu(sealing techs) and eventually was the cause for the clan's demise as they were destroyed. Uzumaki's possess incredible longevity,lifeforce. It's why Kushina was able to survive the extraction(after just giving birth!). We know the last 3 jins of the 9tails were Uzumakis. We know that the 9 tails(excluding juubi) is by far the most powerful. And that Kumo even attempted to kidnap Kushina for her special chakra. This all leads me to believe that Naruto might end up being the jin of the juubi after Madara is defeated. And that in all likely hood RS was also an Uzumaki. RS is the ancestor,Adam as you said that preached and explained how chakra works. His purpose for it was find peace, instead people used it hurt,fight one another and that was how ninjutsu was born. Also the 9 tails reconigzing Naruto's new sealing tech and calling it Rikudo's...!!! again connects Uzumaki to RS. And Nagato who was an Uzumaki having the rinnengan. This makes me believe that it is impossible for the Uzumaki clan to simply be a sideclan of Senju because the Senju only got the body power of the sage. Either implying the Uzumaki's are also connected to Uchiha clan or it was RS's clan of origin. The latter being more likely as RS became the jin of the most powerful tailed beast, RS skills with seal techs must have already been extraordinary. We've seen how diffecult all the villages had it in trying to control their tailed beasts.