From Famitsu, Persona Q: Shadow of the Labyrinth will have more core elements from the Etrian Odyssey series such as the map drawing feature and the F.O.E. monsters.
Map drawing is a core feature to the Etrian Odyssey series, the games Persona Q is primarily based off of, which involves players drawing their own dungeon maps on the bottom screen of the 3DS.
F.O.E. monsters are special kinds of monsters in the Etrian Odyssey series which are very powerful and have specific patterns of dungeon roaming based on the player’s movements. According to Famitsu, these monsters will give something special once defeated.