This isn't actually a new idea, and I don't have any intention of writing it myself, but, hey, here it is if anyone else is interested.
Working Title: "Sunset"
Fandom: Axis Powers: Hetalia
Genre Tags: Angst/General
Length: Oneshot.
Protagonist: England.
Other Main Characters: Possibly none.
Antagonist: Possibly none.
Plot: "If the sun never sets, then why is it so, so close to the horizon now?" England reflecting on the impending loss of the empire.
Setting: Outside at his home, at the appropriate time.
Point of View: First person (England).