The Elder Scrolls IV: Oblivion is a game currently under development by Bethesda Softworks for the PC, Xbox 2, and Playstation 3. It continues the long tradition of The Elder Scrolls game series. So far details are scanty but it has been in development since 2002 and it is claimed as "another leap forward in role-playing with its combination of freeform gameplay and cutting-edge graphics."
Although initially believed to take place in a world smaller than that of it's predecessors, the interview with Todd Howard (see link below) debunks these rumours. Oblivion will sport a completely reworked, more involving and more exciting combat engine, outstanding graphics, magic more usable in combat and many other features. It will take place mainly in the imperial province of Cyrodiil but parts of it will also take place in Oblivion, the realm of the Daedra.
Though there is a lot of speculation, no official or unofficial release date exists.
www.elderscrolls.com (http://www.elderscrolls.com/codex/team_rpgnextgen.htm) - Letter to the fans by Todd Howard, Executive Producer of Oblivion
www.elderscrolls.com (http://www.elderscrolls.com/forums/) - Official Elder Scrolls forum with dedicated Oblivion section
www.gamespot.com (http://www.gamespot.com/pc/rpg/theelderscrollsivoblivion/preview_6111720.html) - Gamespot article on Oblivion
www.gamespy.com (http://pc.gamespy.com/pc/the-elder-scrolls-iv-oblivion/558955p1.html) - Gamespy article on Oblivion
Waiting4Oblivion.com (http://waiting4oblivion.com) - Fan page with fan interview and links to all relevant interviews, articles and other resources
Oblivion Portal (http://www.oblivionportal.com) - Fansite with links to every Oblivion article or interview, an interview of it's own, forums, and an extensive repository of what is known about oblivon.