The first stand-alone expansion to Sins of a Solar Empire has just been announced at GDC. Sins of a Solar Empire: Rebellion will add new ships, visuals, and multiplayer features to the game.
Click more for the details.
A release date has not yet been confirmed. Here's the direct info from Stardock Entertainment and Ironclad Games:
Do you play Sins of a Solar Empire? Is this the expansion you've been waiting for?
Visit the official site for more information on Sins of a Solar Empire.