During Sony's pre-TGS press conference, it was announced that Persona 5 will be headed to PS4 as well as PS3 in 2015.

No specific date or further details were revealed, although a trailer has been released:

https://www.anrdoezrs.net/links/3607085/type/dlg/sid/UUhgUeUpU51025/https://www.youtube.com/watch?v=-Y5U8n4Ie3I