Well, as of right now, in the field of writing, Eldest DE (Deluxe Edition) was released in stores on Saturday. The release date for the third book, thought to be called "Empire", has yet to be released to the public.
In games, a version of Eragon: The Game is due to be released for nearly every system (including PC) on November 14. A trailer for the pc version of the game, as well as 2D and 3D box pictures can be found at
http://www.Shurtugal.com.Finally, in movies, the thing that we've all been anticipating and, for the surprising many, fearing, is Eragon: The Movie! The movie is still in production, and the job for special effects has been too much for only one company. The labor has been divided between ILM (George Lucas' Industrial Light and Magic) in America, and another special effects studio roughly the same size in New Zieland. The movie is due for release across the U.S. on Dec. 15.