id Software Amplifies the Terror With Doom 3: Resurrection of Evil(TM) announces plans for Resurrection of Evil, an upcoming expansion for DOOM 3 that "continues the frightening and gripping single player experience of the blockbuster original. The title also features even more multiplayer action with support for up to eight players in all new maps." Here's a bit more on the project, which is scheduled for release when it's done:

id Software(TM) and Activision, Inc. will unleash an all-new assault on humanity with DOOM 3: Resurrection of Evil(TM), the official expansion pack to the fastest selling PC first- person action game ever in the U.S., according to NPD Techworld. Co-developed by Nerve Software and id Software, DOOM 3: Resurrection of Evil continues the terrifying and intense action of the already classic DOOM 3, which Maxim and Computer Gaming World awarded "five out of five stars" and the Associated Press called "one of the scariest games ever made." Through the discovery of a timeless and evil artifact you now hold the powers of Hell in your hands, and the demons have come to hunt you down and take it back. Following the events of DOOM 3 and featuring new locations, characters and weapons, including the return of the double-barreled shotgun, DOOM 3: Resurrection of Evil expands the terrifying action that fans and critics have been raving about. The title will require the full retail version of DOOM 3, and has not yet been rated by the ESRB.