While it seemed inevitable, Atlus officially confirmed plans to bring Shin Megami Tensei IV to North America this summer. The Nintendo 3DS entry in the series serves as the "first true successor" to 2004's Shin Megami Tensei: Nocturne, and will be released as a premium title.
SMTIV hasn't been rated yet, but Atlus is expecting it to receive an M rating. The RPG sports 3D dungeons, voiced dialogue, and StreePass functionality, along with the core mechanic of collecting and fusing demons. Over 400 are available to recruit in SMTIV, so it should keep thorough players busy for quite some time.
Some screens from the press release:
The story of SMTIV centers on the Samurai, who are charged with protecting the Eastern Kingdom of Mikado. Players will take on the role of a newly appointed Samurai, dealing with opposing factions and defending the kingdom from an ever-increasing demonic threat.