Possible plot twist.

[Uchicha Macho]

Do you think obito/tobi could some uchihas in the other dimension?I dont think obito will slaughter his family and friends
Tobi dimension is big enough to store the uchiha.Probably hide some important uchiha till the right time to release them.tobi carry the food to the uchiha by s/t.

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[Bigfoot34501]

That would be possible, but what Uchihas would he bother to keep alive and store?

 

[The Sorrowful Prince]

Surprisingly possible. +rep.

 

[Prince Charles]

Sharigans in his lab indicate he slayed them all

 

[TheRealAkatsukiLeader]

Hmm.. Amazing theory though, perhaps he was smart and did so. Just because he has all those Sharingan doesn't mean he didn't save some people. +rep

 

[Bijuu Kage]

Maybe

 

[Dantee]

Unlikely bro.

 

[Uchicha Macho]

some people who might be important to him could be alive.if tobi his really madara /obito he keep his descendent alive