Board Thread:Theories and Speculation/@comment-28136690-20160425201055/@comment-25122992-20160425201658

Nope, it wasn't. Madara, one of Indra's reincarnations, was still alive after Kakashi's/Obito's birth and without his death the reincarnation cycle couln't start anew. Moreover, Kakashi/Obito and Naruto/Sasuke lived at the same time, and there can't be two living (non-Edo) reincarnations of one person at the same time.