JJ won't die. I'm like %99.999999 sure of it cause its been said on talk shows, interviews and such that he will make it home alive. I also think that there is still a fairly good chance he and Beth will get back together...eventually...but it may take a while (especially considering what both of them have been through). However, as far as JJ not wanting to be a father...as someone in an earlier post said (if i wasnt so lazy i'd check who lol) if that is the case...tough luck for him..he's gonna be one...whether he likes it or not...and even if JJ and Beth dont get back together...NOTHING can alleviate him of that responsibility (which he will step up to I am assuming--- knowing a little about his character). So who knows. Can't wait to find out.
P.S. I am a huge fan of JJ and Beth's relationship. I'm rooting for them working out their issues...as they have done in the past (these more recent issues are just more severe than before). But we'll just have to wait and see.