Perfect World Entertainment (PWE) has been hard at work on Ether Saga and big changes are on the way for the free-to-play title. PWE has plans to re-launch Ether Saga as Ether Saga Odyssey in North America on April 27th, 2011. What's changing you ask? According to IGN's report, the game engine and UI are getting an upgrade and the game will receive new content, which includes new races, pets and areas. Head over to IGN to check out the preview trailer.