Perfect World has announced details about the upcoming expansion to Forsaken World: Nightfall.

Players will be able to experience a brand new flight system.  With flight comes new bosses, dungeons and events specifically designed with flying in mind.  A sky fortress has been shown, as well as many new places to discover.

The Immortal Rift is also being redesigned in the expansion.  Guilds may now claim territory, and must defend it, or seek new territories by attacking other guilds.

Perfect World also publishes Perfect World International and War of the Immortals.