http://www.fanfiction.net/s/1140931/1/
This story takes place post-Fusion, and tells of Samus’s adventures beyond. If you’re as big a Metroid fan as me, you’ll love this fic.
As an aside, Eyes5 also has a DevArt page, and she’s done a couple pieces of cool Metroid art, my favorate of which is this illustration for the story.
The story is incomplete, but is still being updated on a regular basis.