In Korea, tomorrow BD will introduce a new system to further enhance your character customization. Once players get to lvl 56, they will receive a quest from their black spirit. The black spirit will make you go on a epic quest to gather 7 pieces from around the world to make a brand new awakening weapon for your class.
Once you have this weapon in your possession, your class will change to a whole brand new class, with new skills and abilities.
For example if your a warrior, and get your awakening weapon, your warrior will change into a Great Sword class. A sorcerer will change into a Death Knight class. A Giant will change into a Iron Fists class, and so on.
Here is a video of a warrior using his awakening weapon, and is now a Great Sword class.
https://www.youtube.com/watch?v=W0zFViqgVKo Here is another video of one of the new world bosses you need to take down for your quest, it also teases the Sorcerer awakeing weapon "The Scythe", that changes the class to a Death Knight class.
https://www.youtube.com/watch?v=V0JLZdmTvMA&feature=youtu.be