Kevin J. Anderson confirmed recent reports that he'd be doing a new Sith short story for Star Wars Gamer #3. This was posted on his site:

"Bane of the Sith"

Kevin To Do New Star Wars Short Story: The Origin of Darth Bane

Many fans have written to ask when Kevin will return to the Star Wars universe with more original fiction. You have only to wait until March for a 5000-word short story, never before published, in issue #3 of the Star Wars Gamer magazine (on newsstands March 19).

The new story, "Bane of the Sith," is set a thousand years before Episode 1, and tells the origin of Darth Bane, an evil Sith Lord who changed the nature of dark-side followers forever. This story provides a bridge between the Tales of the Jedi History and The Phantom Menace and also acts as a springboard for a new Dark Horse Comics series, Jedi vs. Sith.

Visit the link above for more of KJA's site!