sadly like Dean said .. I think they'll die long before that. =( </3

I think that they will be fighting till the end. But I don't think that they will survive to be 'old men'. I can't see them becoming like Bobby and I'd not want to see them like Rufus Turner, all paranoid and resentful. They are hunters they are not ment to live happily ever after. I think I'd feel cheated if the show finished with a happily married not thoughts of hunting flash forward.

no..as much as i hate the thought of them dying

IF at the end of the series they were to survive, yeah I could see them becoming like Bobby - I don't think it's something they could break away from all that easily.

i dont know. but i think that by then they will have found girls and have better lives than just hunting all the time. they deserve it

Yeah, maybe like Bobby, or maybe they're married with kids and they teach their kids how to hunt.