The next numbered Persona game, Persona 5, has been officially confirmed for North American release by Atlus. Get ready to be chained to your chair and PS3 some time in 2015.
I wish we could tell you more. You don't know how badly I wish that.
Atlus has also confirmed North American releases for Persona Q: Shadow of the Labyrinth, Persona 4 Arena Ultimax, and Persona 4: Dancing All Night. Best day ever?