A teaser for the NA release has been posted up, not showing a lot but has a kind of cheesy announcer.:P I have faith in Atlus to have a good dub for this through.
There was also some info in the recent famitsu revealing that from the start this game was planned to be an handheld title, and the team has made the main character with a perspective of not knowing about Modern Japan or its current values.
Other info are Kazuma Kaneko was definitely involve with this (he came up with the samurai idea), and they made demon fusion easier to get into with recommended fusions (top 3 demons are shown when fusing).
Looking to be another great addition to the 3DS.