Leveling has not been changed except for one new addition - marks of fate. Every time you gain exp, you also gain equal amounts of marks of fate and locked marks of fate. Those can be used to complete quests instantly, you can save them up. Locked marks of fate can be unlocked with an item in the itemshop. This makes questing much, much faster, because you can just skip tedious quests.
If you do like I did, and not use any marks of fate during the whole Eljune, you can finish Coba in about 15 minutes. Although I beat Eljune during a double exp. day on RU to do that, and double exp. meant double marks of fate as well.
Colin Quinn Recipe for success/dinner. 1/2 cup of brass you know whats, a tablespoon of I don't give a care, and a pound of get off my back, jack!