In a Famitsu magazine interview leaked early from the magazine (and translated by Andriasang), Team Persona producer Katsura Hashino said that his team is currently focusing on the next numbered Persona game, which very likely means Persona 5. We must admit, our cynical nature forces us to note the possibility that more Persona 3 and 4 remakes would also have numbers on them.
According to Hashino, art director Shigenori Soejima has started turning in sketches for new designs. In the meantime, you can play Persona this week as you never have before: as a fighting game.