...and 3 other games nobody cares about ;)
Seriously, that entire thing was a giant tease. Of course Persona 5 was what everyone was waiting for, and they barely even showed anything about it.
OK, so the other three were:
Persona Q: Shadow of the Labrynth: A 3DS spin-off title with characters from P3 and P4, first-person dungeon crawling, and frankly bad art. I know they were were going for a simple, chibi style or something but it looks really cheap even for a 3DS game.
Persona 4 Arena sequel: With another silly name that will probably be changed in the localization. Of course we kind of already knew this was coming with the announcement of a new arcade version, but they teased some of the story details too. Looks like it will have a full story mode just like the first one did, and probably pick off from where it left off. Which is pretty cool. Oh, and Adachi is in it.
Persona 4: Dancing All Night: A Persona 4 dancing rhythm game for the Vita? I know this threw a lot of people for a loop. Still, the Persona series does have great music...
Edit: Aaaaaand, queue a whole lot of people bitching that P5 is on PS3 and not PS4 or Vita. That's kind of what I expected, though...