The next major update to TERA will be arriving on January 30th. Called The Guardian Legion, it contains a number of new activities for max-level players. When opening the world map, players will be able to see "hot spots" that indicate an active participation area. Up to 15 max-level players can take part to try to close out any one of the six available missions.
Folks completing Guardian Legion missions earn "points" that can be traded for as many as 40 reward boxes per day. Each of those can contain gems that can be exchanged for upgrade materials, enchanting materials and / or XP.
Check out the teaser site on the TERA page.