Shin Megami Tensei IV will be available on May 23rd in Japan, according to Famitsu. A limited edition Nintendo 3DS XL will be available on the same date with the game pre-installed.
Shin Megami Tensei IV
takes place in 1492 in a Europe-like setting called East Mikado. It is
so named for King Ahaziah Mikado, who lives in a castle within the city
that's protected by high walls. He has samurai as opposed to knights,
and in fact, the 18-year-old main protagonist - who, you name yourself,
will become one such samurai.