Yes, three releases was not enough for the Etrian Odyssey franchise, a Nintendo DS series which relies on you as the gamer to navigate through dungeon-crawling labyrinths filled with challenging maps and requiring you to draw the level maps to boot! This trailer showcases the game as a whole over the four minutes, giving a more guided walkthorough over plunging you in with random scenes.
Etrian Odyssey IV is due for release by ATLUS on the 5th July 2012 in Japan. ATLUS USA who have been responsible for the games release in North America has yet to say anything on this game.