There’s a lot of things that were said and I didn’t read it in the manga. A few things stood out to me the most but the manga/DB made it clear that...
Yin≠Rinnegan, Yin=Sharingan
AND
Naruto’s life energy cloak is not uzamaki clan thing it’s a Ashura thing. In part 1 they revealed that Hashirama’s life source was put into his wood style. His chakra manifestation is the wood style while naruto’s life force was put into the kyubi’s chakra making it go from red to fiery yellow.
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TL/DR
Had Kishi planned ahead and created Kaguya, Hagoromo, and Hamura beforehand, rather than along the way, we would have gotten something like this:
Hagoromo - Senju (Sage Mode) Uchiha (Sharingan)
Hamura - Uzumaki (Chakra Mode) Hyuuga (Byakugan)
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Everything was derived from Naruto. The One was not Kaguya but rather Rikoudou Sennin (Hagoromo did not exist yet nor the entire Ostustuki). According to J-Man, Naruto is the next RS. That is why Hagoromo's design was based on Naruto as RS was based on Naruto.
Rinnegan was Yin-Yang pre Kaguya and Hamura reveal.
When they were revealed and The Last movie was revealed, it changed.
Rinnegan was now the ORIGINAL Yin and tenseigan the Yang.
Kaguya (Gen 0) - Rinnesharingan
Hagoromo (Gen 1 Yin) - Rinnegan
Indra (Gen 2 Yin) - Mangyeku Sharingan (Eternal)
As for Ashura, I've said that Hagoromo and Ashura were retconned. Naruto was supposed to be Rikoudou Sennin (before there ever was a Hagoromo, let alone Kaguya and Hamura) and that's how his design turned out to be red haired and closely resembled Naruto.
Then Kishi decided that Sasuke be included so the entire thing changed and he introduced Indra and Ashura (this one is closer to what he had in mind)
Indra being the older, the same with Sasuke being older than Naruto. Indra was designed as Sasuke so he had Susanoo (parallels)
Ashura being the younger, same with Naruto being younger than Sasuke. Ashura was designed as Naruto so Chakra Avatar (parallels, at least he didn't have yellow hair or red hair this time)
Toneri on the other hand was the whole evidence of the retcon.
Toneri is on Hamura's branch side of the family.
He has everything that Naruto has thus far (parallel of Naruto)
He has the tenseigan which was the parallel of tenseigan
The reason why I related it as an Uzumaki thing is due to their chakra chain which is similar to Kinshiki's and the chakra cloak (Hence their mentions and pictures)
Furthermore, Kurama started having chakra cloak after Minato uses the Reaper Death Seal - an Uzumaki Clan specialty, which is why I mentioned fuinjutsu as that is why they feared the Uzumaki Clan to the point several villages collaborated in their demise.
Senjus mostly dabbled in Sage Mode rather than Chakra Mode. This is why I related Hashirama and Tsunade
The marking on their forehead for their ultimate technique also resembled Hagoromo's (no it is not rinnegan as it was already there when they, Hagoromo and Hamura, were fighting Kaguya. so pre juubi-jin Hagoromo)
Ashura was the only person who has ever exhibited the chakra cloak (again it was just to parallel him to Naruto). This is also due to the fact that Hamura did not exist yet.