The other night during the Wii U Oriented Nintendo Direct conference, it was announced that ATLUS and Nintendo would be collaborating in development on a mystery project featuring a crossover between their Shin Megami Tensei and Fire Emblem franchises.
While we still have no word on how this game will play out or even any screenshots of the game, Index Digital Media, the parent company of ATLUS today released a press release for the title, unveiling that at its core it should be an RPG installment. You can read this press release (In Japanese) HERE.
Thanks Gematsu