Tokyo Mirage Sessions ♯FE

Shin Megami Tensei X Fire Emblem, known in Japan as Genei Ibunroku#FE (幻影異聞録#FE, lit. Illusory Revelation#FE) is the working title for an upcoming RPG for the Wii U. A collaboration between Atlus and Intelligent Systems, it is a crossover between the Fire Emblem series and the Shin Megami Tensei series. The game was announced via a teaser trailer during a Nintendo Direct video presentation on January 23, 2013.

For the following two years, information on the game following the initial teaser was sparse. Nintendo's Hitoshi Yamagami revealed to the magazing Hobby Consolas in an interview published on July 9, 2013 that the game will be set in the modern era. Yamagami, who had previously desired to see a Fire Emblem set in the modern era, was the person that pitched the initial idea of a collaboration effort to Atlus.

Nearly a year later, on June 11th 2014, Yamagami and other members of Intelligent Systems held a Q&A during E3 focused on their just-announced new intellectual property Code Name: S.T.E.A.M. During the Q&A, the question of Shin Megami Tensei X Fire Emblem's status was brought up. Yamagami responded by saying that development was "on schedule", but did not elaborate any further.

On April 1, 2015, Nintendo unveiled the first proper trailer for the game in a Nintendo Direct, showcasing the game's look, as well as snippets of gameplay, cutscenes, and character interactions. It also showed some of the main protagonists and enemies. According to the trailer, the game seems to take place in a modern day Japan, where at night monsters come out and the heroes use weapons and classes of the different Fire Emblem characters to fight them off, even bearing similarities to them, such as the boy with blue hair who looks remarkably similar to Marth and a girl dressing as a stylized form of Shiida. Tiki is shown to be in the game and is in her younger self from Shadow Dragon instead of her adult self from Awakening. In-universe, she appears to be a celebrity, her visage appearing on ads in the city but also shows up in a mysterious temple that is not in the modern day. The villains Gangrel and Aversa also appear in the trailer as enemies, though in much more stylized, demonic forms reminicent of the demons seen in the Megami Tensei franchise.

Fire Emblem related characters
The Fire Emblem characters that appeared in the initial trailer in 2013 were:

Characters that appeared in the Nintendo direct trailer:

Tiki

Gangrel

Aversa

Etymology
The Japanese title Genei Ibunroku#FE is derived from Megami Ibunroku (女神異聞録, lit. Goddess Revelation), the prefix used to designate several spinoffs of the Shin Megami Tensei series in Japan.