- And All She Saw Was Love by stillwaters01. Gen. Character death.
Summary: A lot could happen in a week. God had created the whole world. And she had seen Dean Winchester’s destroyed.
http://archiveofourown.org/works/404888

- La División by roque_clasique. AU S9. Mostly Gen, non-explicit Sam/OFC.
Summary: Five years after Sam last saw his brother, he woke up choking on a damp mouthful of his pillow and strangling on his own snot and tears.
http://roque-clasique.livejournal.com/153707.html

- Stopping the Apocalypse and Other Acts of Awesomeness by darth_firefly. Gen, Character death.
Summary: A cautionary tale of being careful what you wish for - and for some, lines you shouldn't cross.
http://bluetoastfics.livejournal.com/19248.html

- Just Desserts by TardisIsTheOnlyWayToTravel. Gen. Character death.
Summary: Sam and Castiel decide to destroy Heaven, and Gabriel does absolutely nothing to stop them.
http://archiveofourown.org/works/266243?view_adult=true

I'd also like to second We Were Twenty and No Line On The Horizon.