... Have you really not played Awakening yet?
1st announcement: Persona Q, a P3/P4 crossover for 3DS. June 5, 2014
2nd announcement: Persona 4 Arena: The Ultimax Ultra Suplex Hold, the Sequel to Persona 4 Arena, will be coming to console in 2014
3rd announcement: Persona 4 Dance, a dance game with some of the P4 cast and remixes of songs from P4. wut.
4th announcement: Not sure
5th announcement: Persona 5: Winter 2014 OH MY GOD YES I'M SO HAPPY
Keep in mind all of these dates are for Japan.
Will update as more information is released.