I would thing it to be a way to quickly combine UChi9ha's and Hashirama-level Senju's gene into one being to recreate the Rikudou Sennin's whole genetic make and apowers. I suspect that there might quite well be some info or link with the Bijuu's powers and origin as well. I'm thinking that because Suigestsu'S knowledge about the ongoing war and The rikudou thing/families must not be to vast. So for him to understand enough from the scroll, there must be something he can quite well refer to and know that it would be powerful enough indeed to control the war/world with.
Suigestu experienced first hand the devastating power of the bijuu and part of the reason why Akatsuki was after them. For him to return to Sasuke instead of using it for himself must mean that he knows Sasuke was required and/or able to use the fruit of Orochimaru's finding and experiment described on the scroll. Orochimaru must have known enough of the Uchiha, Senju and Uzumaki Clans history with their link with Rikudou Sennin and the fact that the latter was the Juubi's jinchuuriki. An inscription including Banbutsu Souzou might be there as well, and such ability would indeed have drastic effects on the shinobi world if used.
---------- Post added at 09:21 AM ---------- Previous post was at 09:18 AM ----------
Don't know if this has allready been discussed, but I think that there might be a chance that the scroll might allow Sasuke to get these eyes:
We don't know yet, what kind of dōjutsu the Uchiha Clan Ancestor had. But his eyes looked completely different from anything else we know. He probably didn't have Senju DNA and he wasn't mentioned by Tobi as being one of the three sages of the six paths.
This leaves me to the conclusion, that this dōjutsu is not a Rinnegan, but something else. Maybe it's the Uchiha clans ultimate eye technique?
The clans ancestor was the one closest related to the godlike Sage, it would therefore be fitting if he had the strongest eye-technique.
And if this eye-technique is even stronger than the EMS that Madara has shown and stronger than the Rinnegan, then the one using it would surely be strong enough to "rule the shinobi world" (just as Suigetsu said).
Also, it would be fitting for the story, if Sasuke would get the same powers that the one had, who started the whole "curse of hatred".
I think it would be nice if in the end of the manga, Sasuke would have the same powers as the Uchiha clan Ancestor had and Naruto would have the same powers as the other son of the Sage had (perfect body, will of fire).
In their final battle then, Naruto could be able to find a way to end the curse of hatred and end the rivalry between Uchiha and Senju.
It's just an idea, but I like it.
Ok just gonna give my first thought about when I first read the chapter.I just of something fairly simple yet credible.I thought the scroll he found was to ressurect the dea.and being that sasuke said that he wanted answers I think he wants orochimaru to bring his parents from the dead so hecould get the whole truth from them.kabuto said how to do it but he could be lying.just saying.
In the Rikudo's elder son eyes, the sclerae is visible. So maybe that is nothing but a Mangekyou Sharingan?
Now I thinking again that the scroll has something to do with RS and the place where Sasuke and the others are heading to.
No, that's impossible. why?
1. Because of suigetsu. I'm pretty sure that suigetsu is clueless or doesn't know anything about RS.
2. Why the heck kabuto wants to research on RS's power if he and orochimaru has already the data/scroll of RS himself.
The place where sasuke is heading is just in the uchiha's place. Maybe he was looking for Grandpa Cat, the man who knows everything.
If it's the Death God Seal, then not only will Orochimaru possibly have his arms restored, but the other 50% of the Kyuubi could be released. This could be the final power-up for Naruto to finally beat Madara, and Sasuke would be doing something good for the world and Konoha for once.
Then maybe Rinnegan-Sasuke will battle 100% Kyuubi-Naruto or something...hah
Therefore it is unlikely, to me, that those eyes are more powerful than the eyes the SOT6P originally had...
Also, as the manga stated that the son got the SOT6P's eyes, I believe it is more likely that it is a drawing error and is meant to look the same as the rinnengan (rather than a spiral).