Sega have released three screens and a teaser trailer for the upcoming Aliens vs. Predator from Rebellion. With the status of Sega's other two Aliens projects Aliens: Colonial Marines (Gearbox Software) and the Aliens RPG (Obsidian Entertainment) shaky at best Aliens vs. Predator is likely to be our next gaming visit to the universe. The game is in development for PC, Playstation 3 and Xbox 360. Expect it to be one of Sega's focus titles at E3 in a couple of weeks.