<p>He talked with Sakumo up until he was revived by Nagato.
</p><p>To review for you;
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- In that time, Naruto appared on the battlefield.
- Fought Pain
- Turned into Kurama
- Chibaku Tensei happened
- Naruto searched and found Nagato
- Talk no Jutsu
- THEN Rinne Tensei
<p>No. His brain did not last that long after dying. He was dead. He talked to his dead father, get over it.
</p><p>P.S. Remembering Minato and Obito and Rin is what happened in the manga. "Seeing them" only happened in the anime.
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