obviously kakashi will survive, no matter how much i hate them, this is a fact. Kishi made it so clear that kakashi will serve as next hokage, hes been giving us too much hints, the convo tsunade had with jiraya about hokage position and kakashi, then in kishis 2008 interview he said an important event will occur to kakashi, and after kakashi survives from that fight with pain, he will be new hokage. Like kakashi always is, he will end up in the hospital yet again, and stuff. Same stuff, its like a cycle. He wont die anytime soon, that is for sure. Naruto will not beat pain IF he battles pain currently. Naruto improved, but is still not in that level yet to defeat pain. He will eventually defeat pain, but not around this time.