While it's long been known that Persona Q: Shadow of the Labyrinth blends characters from Atlus' beloved Persona franchise with the mechanics of its likewise beloved Etrian Odyssey games, we've had scant solid information on how exactly this collaboration would work - until now.
Famitsu, via Siliconera translation, claims that the map-making functionality ofEtrian Odyssey will make an appearance in Persona Q. This gives prospective dungeon crawlers the chance to sketch out a map of their virtual surroundings using the 3DS' touchscreen. It's unknown how big a role this feature will play inPersona Q, though in the Etrian Odyssey games it was just shy of mandatory for anyone hoping to make any real progress.
Likewise, Persona Q will feature FOE encounters. Officially, "FOE" is an acronym for "Formido Oppugnatura Exsequens," but more pragmatically you can think of these FOEs as largely optional boss encounters. Killing a FOE results in great rewards, but more often than not, it will be in a player's best interest to flee from the battle until properly prepared for that specific fight.
Persona Q: Shadow of the Labyrinth lacks a specific release date, but Atlus has targeted the Fall of 2014 to launch the handheld roleplaying epic.