Stardock have just released several new screenshots for the upcoming Sins of a Solar Empire stand alone expansion pack called Rebellion. This new version of the game features several hefty changes including interface updates, a graphical overhaul, splitting of the factions, and many many improvements.
As you can see from the screens, the game is even better looking than before. It's total space porn. Sins of a Solar Empire: Rebellion should feature the same four player co-op options as its predecessor, allowing players to take on AI through the game's scenarios. It'll be out on PC later this year.