3 Fics: Temp Revival | No Deal | Eaten Alive
Fic 1: John Winchester is somehow resurrected. Bobby, Sam & Dean try to research why John is suddenly amongst the living again. Later on, a spirit appears in Bobby's house and John starts speaking an unknown incantation which cause the spirit to break it's earthly bonds and go to the afterlife. Suddenly Gabriel appears and explains that John was brought so that he could absolved the spirit, which was the "last supernatural entity" on Earth. Gabriel goes on to say that John will be regarded as a saint, using the name "John Eric" since there is already a Saint John. John then moves on to Heaven.
I think the setting of this was post-apocalypse, with Gabriel having been resurrected after he was killed by Lucifer.
Fic 2: Dean goes to make the crossroad deal to resurrect Sam. However, the demon refuses to make the deal because it's fun to watch Dean being racked with sadness and guilt over not protecting Sam.
Fic 3: For some reason Team Free Will are in hell. More specifically near the cage. Soon the surroundings start to break apart and out of the crack comes creatures that want to eat whatever they can get their hands on. So Team Free Will make a hasty retreat. However, before the cage is completely out of sight, Dean looks back and sees that Michael & Lucifer are trying to get out of these zombie-like creatures grasps to no avail. It is implied that the 2 archangels were consumed by the creatures.
I hope someone recognizes these fics.