If you go back and look at P2, you can tell that it was a 90's game, same with P3 in the early 2000's. This isn't to say those games have aged poorly, but that they reflect the time period they were made in.
Do you think P5 will age like that, what with it's use of emojis in regular speak and abundance of smart technology? Or do you think 10 years from now, looking back at P5 will make you cringe?