While western releases for Etrian Odyssey Untold 2: The Knight of Fafnir have yet to be announced, the game is due out in Japan on November 27 of this year. In preparation Atlus has released several brief trailers.

The first trailer is a general overview of Classic Mode, which is a remake of the original Etrian Odyssey 2 without the plot and fixed characters of Story Mode. The second trailer shows off the Grimoire Stones system, which gives characters new skills when the stones are equipped. The third trailer focuses on ways to trade and recycle Grimoire Stones. The final trailer introduces Story Mode's protagonist, a young man who is shown to be able to undergo a strange transformation.