They will survive. I don't want to spoil it too much, but someone thats known to be dead isn't, and will come back with a army.... thats all i will say....
I know this fro many reasons... one tis foreshadowing, and too, i got spoiler links, lol, but really, the word that the numbers that jiraya left spell out the organization that was created by the leaedr of the senji clan and madara a long time ago. i'll let you figure out the rest and teh true identity or pain.
................................................................wow. I STILL DON'T BELIEVE U!!!!!!!! I thought it would say something about tsunades boobs :D guess not.........
Then don't, lol, cause i guessed it all, what i really think it is, is the secret names of each mission where he saw the bodies pein was using, i also think that jiraya isn't dead because for being one of the three legendary sannin, it looks like he didn't put up much of a fight, I think he put up just enought to fake dead or survive or something. i also am pretty sure that the 4th hokage is alive, because everyone else who used the sealing jutsu on the demons survived, so what makes him so special that he died, i think he and his wife left the village after that and that jariya knew... the secret code could also lead to that, And one more idea i had was that the eight tailed demon is mad hardcore and strong and has some type of special ability that will let me escape from the fight against sasuke, tobi, and that mizu water guy and that he will head for leaf to join up with naruto and leaf to take on akatsuki, and gaara and the sand people will come with super uber new jutsus and it will be a huge azz battle between sasuke and naruto at the valley of the end or that sasuke will end up joinning with leaf and he will fight tobi and naruto will fight pein to avenge jiraya. so think about it.....
Yup, and naruto will kick everyones ass, but no before the the other demon kicks sasukes ass and then teams up with the leaf village and they have this crazy epic battle