1. If sasuke and naruto, both of them died, the manga is not comedy anymore. And maybe kishimoter will reveived many complain from naruto fans.
other wise, the manga needs naruto, the main character should not die.
2. Who is tobi? who is tobi? that's question is asked frequently and kishi still hide the truth...
who he is? no matter who he is, He is the one hate leaf village.