User blog comment:DarkIngRidley/What ''old friend'' do you think is gonna appear in Season Seven, Episode Twelve??/@comment-79.119.152.169-20120103090756/@comment-3481504-20120103170252

An angel's more of a possibility than Death, but they're both a stretch, and I doubt that any of those a plausible. I mean, how many angels do you know that are friends with Dean and Sam..not many. And I don't think Death is their friend, and wouldn't care if Dean was time-trapped.