does temari or kankuro die in shippuden my friends say they do i needto know

Neither of them dies

Tenmari and kankuro doesn't die but other characters will die

Neji will die

Nope

I don't read the manga, but I know they haven't died yet in the anime. I also doubt they've died yet in the manga, since I probably would have stumbled upon a spoiler about it by now if they had (damn internet! XD). I think your friends have either been misinformed, or are pulling your leg. :P