I think he needs to die too, I mean if a sage mode Jiraiya couldn't beat him then what makes you think Kakashi will? Sure he'd have back up but in a one on one fight he would get pants'd bad
I think that Kakashi is hiding something too , very fast doton elemnt and two raikri on the very first movemnts , he said that he has bad stamina so why he is using such powerful jutsu first ? I think that Kakashi has some good technics and some mode like jirayia or orochimaru. Maybe Kakashi the Dog :D
kakashi prob gonna for an instant MS win, but pein will neutralize with a godly space time warp of his own
Kakashi wont die. he will be the next hokage. He has to be there nobody left to be it im not saying that Tsunde will die but do think she will and theyre not just going to give the title Hokage to some side character and Naruto isnt even close to being Hokage i say he wont be for another 10-15 years. Kakashi is only taking on one Pain and we all know that one pein can only do one thing either Taijutsu, Ninjutsu, Genjutsu, and etc so its not like this pein is going have every trick in the ninja book
for instance asuma couldnt beat hidan not because he was not stronger it was because he did not know the situation before he fought. neither did jiraiya, but kikashi now knows pein isnt realy there and that the bodys are basicaly immortal to regular attacks i am sure he will figure something out.
Thats a good point. Kakashi isn't going to die just because hes fighting Pain. Its only 1 body. This gives him opportunities to land hits unlike how Jiraiya wasn't able to because of him having multiple fields of vision. He is facing the god realm though, so he is bound to have some unnatural powers that will stop Kakashi from defeating him.