I know Jared's said he'd like the brothers to go out in a blaze of glory, Butch & Sundance style. I think a couple of years ago I would've been okay with that, but not now. These characters and this show have been such a huge part of my life, I would be heartbroken if they died (permanently). Personally, I'd like them to go on hunting, that way, they'll always be alive for the fans and we can continue to write fanfiction for their on-going adventures. ;)
How do you want SPN to eventually end?
Blaze of glory w/the brothers dying side by side
The brothers drive off into the sunset in the Impala, to continue hunting
The boys quit hunting & live a domesticated life, happily ever after
One brother makes the ultimate sacrifice, leaving the other brother to go on alone