Launching on the Hangame platform in South Korea next week, it was announced earlier that the 4th playable class, Cannon Shooter, will be ready as well. Gender-locked, this class is your typical loli character, which is still a “must” for games in Asia. As of now, there are no overseas servers announced.
Developed by Ginno Games with inspiration from Diablo II and World of Warcraft, Devilian was meant to “counter” Diablo III with its somewhat similar style, though with a ready 30 vs 30 PvP combat system. Other than Path of Exile, I haven’t really seen many successful isometric online RPG these days.