Board Thread:Theories and Speculation/@comment-30598131-20161125182230/@comment-1512913-20161125192756

I think more like Rinne Sharingan + Tenseigan. I'm sure Rinnegan and Sharingan are just Rinne Sharingan split.

Rinne Sharingan seems to be a result of eating the chakra fruit, at least for Kaguya it was. Where the Tenseigan fits and how Hamura got it is unknown.

And no, Boruto can't get them. Only someone with chakra like Hagoromo (and Momoshiki I guess) can have the Rinnegan and unless Boruto gets a transplant, he can't have Sharingan. For Tenseigan, The Last novel says by combining chakras of Hyuga with Hamura's Moon descendant chakra, the last being Toneri. So Boruto could or could not get Tenseigan by taking Toneri's chakra.