Yeah, a lot of the immediate reactions I've heard from the media is how it seems the stakes are initially higher compared to P3 and P4, and it does seem that way. I liked the fact that the exploits of the characters were kept hidden from society in Persona 3 and 4, but I also like the concept that they aren't for 5, or that the crazy shit they're doing doesn't necessarily carry over to the perception of the populace but still puts them at the center of attention.
Also, I like Persona 2's writing, but one thing I can tell Persona 5 has over it already is the fact that people actually respond to the craziness going on, as you'd expect them to. In Persona 2, it's blatantly obvious that rumors are becoming real and demons are invading the freakin' city. The response of the NPCs? "Oh, we don't go to the second floor of this store because demons are roaming around. Whatever, we put barricade tape there, it's totally fine." Everyone is so nonchalant about the fact that there are demons walking around and that there's stuff like a bully walking around, asserting his power over normal people with a Persona.