“Beginning today “Guild Wars 2″ players can experience a new adventure set in Cantha that rejoins the Commander and their allies as Cantha recovers from the events of 2022s End of Dragons.
Titled What Lies Beneath, the new content will be free for all players who own the expansion and feature new rewards, new story, and a new map called the Gyala Delve. This location will also feature the map-wide meta event The Jade Crisis.” – ArenaNet.
Source: N4G PC "Guild Wars 2: End of Dragons" has just released its "What Lies Beneath" chapter