Developed by N Square, the co-development team formed by Nexon and NCsoft, some new info was teased over the previous few weeks. There seems to be 8 classes in development, some of which are reminiscence of the playable ones in the prequel. Here is the teaser image below.
There are 4 categories, Warrior, Magician, Bowman and Thief. For Warrior, the classes are Berserker and Paladin; Magician, the classes are Wizard and Cleric; Bowman, the classes are Ranger and Gunner; Thief, the classes are Bandit and Assassin. The names are roughly translated and subject to changes.
Seen above is possibly the first in-game teaser for MapleStory 2, where players are starting out as beginners. While the image is official, it might just be a piece of artwork. MapleStory 2 takes place before the current storyline of MapleStory, where the main city is known as Tria, the City of Glory.