Gas Powered Games Takes Sieging from Dungeons to Space on Shacknews reveals development of Space Siege, a science fiction variant on the Dungeon Siege action/RPG theme that's due for release in Q1 2008. As Gas Powered announced in May, this project is to be published by SEGA. There is no official press release we can find yet, so here's a pertinent bit from the Shack:

"Space Siege thrusts its protagonist Seth Walker into what is claimed to be a dynamic storyline set aboard a colony ship housing the last remaining members of humanity. Gameplay hinges on the continual choice of retaining Walker's humanity or adding on cybernetic upgrades that afford increased abilities but damage Walker's relationships with his fellow humans. That choice plays into the narrative elements of the game, affecting NPC reactions and plot paths."