"If Karin and Sasuke did have a kid... that kid would be able to possess the Rinnegan"
Some member wrote that but I do not get how he would have reningan
Apparently some "experts" think you need to have uzamaki blood to have rinnegan.
Now tell me "experts" does madara have uzamaki blood in him? No I didn't think so
he has hashirama dna which is senju
Uzumaki's are relatives of the Senjus so it's possible, but a small chance to happen. The kid has to awaken MS and steel some other MS to form EMS, with the right formula of genes inherited from his parents he can activate the Rinnegan.
It's not possible.Madara and Tobi both needed Hashirama DNA to awaken the Rinnegan.So not even other Senju's DNA had the power to awaken the rinnegan, so how would any Uzumaki's DNA do it?