The Skywatch: Antiquities patch for TERA is making some big changes to the structure of the game even before you get to the endgame. Several previous main story quests are being moved into sub-stories, numerous quest rewards have been adjusted, level ranges have been changed… in short, players should expect a different flow to leveling through the game. For that matter, they should expect a different set of rewards in terms of armor and weaponry, which have also been significantly updated.
[AL:TERA]A number of dungeons are also getting brought back, while solo versions of several story-linked dungeons have been added with the option for players to progress quests through them. Merchant NPCs have also had their stocks improved with a variety of new items for player convenience, meaning that the overall experience of playing the game should be faster, more rewarding, and more efficient. It’s a pretty big structural update; check out the full list of patch notes to get an idea of the shape of it.
Source: Official Site