Fires when information for world state UI elements changes or becomes available.
Fires when information for world state UI elements changes or becomes available. World State UI elements include PvP, instance, and quest objective information (displayed at the top center of the screen in the default UI) as well as more specific information for "control point" style PvP objectives. Examples: the Horde/Alliance score in Arathi Basin, the tower status and capture progress bars in Hellfire Peninsula, the progress text in the Black Morass and Violet Hold instances, and the event status text for quests The Light of Dawn and The Battle For The Undercity.
