What does it take for Naruto to reach the peak of Senju/Uzumaki strength?

[ninjabot]

Long ago Rikudou Sennin sired two sons. One, the elder son, was blessed with his father's spiritual power and magical eyes. The other, youngest son was granted his fathers powerful body and physical strength. Over generations the two sons branched off two clans who also inherited their gifts, yet that power for whatever reason... diminished.

Two ninja have managed to regain some of the first son's maximum power: the Rinnegan. It took alot of work and came at a considerable price but an Uchiha, by murdering their closest loved one aswell as transplanting their brother's eyes allows them to get closer and closer to that power. The one thing that the Uchiha couldn't get from their own clan that brings forth the full power of Rikudou Sennin's eyes (the Rinnegan) can only be gained from the descendants of Rikudou Sennin's second born son: the Senju.

So, if it takes the combination of Uchiha eyes and Senju DNA, what will it take for Naruto to gain the maximum power of the Senju clan? Everyone seems to be of the opinion that he can gain the Rinnegan by having the Eternal Mangekyou Sharingan placed in his eyes (which I agree with as per Nagato), but that wouldn't be the pinnacle of Senju power, but the pinnacle of Uchiha power (Rikudou Sennin's eyes). That lead me to believe that he doesn't need a Sharingan to reach maximum Senju strength, but rather something else that pertains to the Uchiha's power being yin chakra focused (imagination and creation).

Inother words, what exists in the Naruto world that pertains to the Uchiha clan's power of creation and imagination that Naruto can gain to get closer to his strength? The answer: tailed beasts. The bijuu. I'm of the opinion Naruto needs every bijuu inorder to gain Rikudou Sennin's body. But there's a number of things wrong with that. First off, the Juubi is necessary for Tobidara's endgame plan. You can't take the enemy's greatest weapon and give it to the hero or there'll be no big fight in the end. Second, I don't even think Rikudou Sennin had the Juubi in his body when he had his children, so I don't think that's what caused his youngest son to be so strong anyway.

So, what then? What's it gonna take? I sincerely doubt injecting Uchiha DNA into his blood is gonna power Naruto up. the best I can come up with is mastering the Kyuubi fully, since it's the biggest piece of Rikuou Sennin's chakra (hence, the reason Naruto takes on his likeness whenever he goes into Kyuubi Chakra Mode. Though admittedly... if he were to have say, the ichibi or one other bijuu combined with the Kyuubi perhaps he'd be strengthened to a level that he looks more like Rikudou Sennin (longer hair).

[Jorge D. Dragon]

I actually believe that the pinnacle of Senju and Uzumaki's strength should be a bit different. Of course both of these clans share the same perfect body and maybe those of the Uzumaki clan got even better body, because they were praised for their long lifespan. I actually believe that Naruto already has his perfect body and quite a strong chakra, cause he is a Jinchuriki. I don't think that he will learn plenty of seals, at least for now, so I don't see him reaching the pinnacle of Uzumaki's powers.
I believe he will master Kuyubi mode deeper and he also might gain other Bijus and thus strengthening his chakra and getting bigger amount of it. He might also change his look a bit, but I don't think so. Though we know that Kuyubi's chakra alone can make trees grow fast just by beeing around, but if it would be combined with other Bijuu's chakra or even with several... it might also change more deep the surroundings and Naruto himself.
But I still believe Naruto will also gain Rinnegan at some point as I believe Tobi didn't actually give anything to Nagato, but orchestrated the situation in such a way that Nagato's shock made him awaken Rinnegan.

[Munboy]

The peak of Uzumaki power seems to be strong Fuuinjutsu and strong vitality-recoverly; the latter reflected by his healing rate and his ability to handle Kurama's chakra. The pinnacle of Senju power seems to be having a powerful body and a large chakra capacity.

Naruto's displayed a lot of these you can argue. He has strong vitality due to the very fact he can handle Kurama's chakra and gets up fairly quickly in battle in his base form (remember when he managed to make clones against Gaara when he was almost done; remember when he managed to take one of Pain's more powerful Shinra Tensei when he faced off with God Realm).
That also provides evidence for his strong body while the large chakra capacity really needs no explanation.

I'm sure a Fuuinjutsu will come into play soon.

His Sage and Bijuu forms only enhance those qualities. I took it as the Uchiha powers are easily seen whilst Senju seem more subtle.