Uh... GTA5 has had a ton of content added to it too (the online component especially). More than 10x that of Persona 5 Royal edition. Regardless Persona 5 is still a 6 year old game from the PS3 gen. Nothing wrong with that but it is strange people complain specifically about other PS3 gen games being released or being remade in this gen but excited by a 2016 PS3 game with far fewer upgrades/changes. Fine by me though, the more people that can play this and not complain about 'PS3 games' the better.Because it's not the same situation. Persona 5 was a cross gen game from the start and persona 5: Royal isn't the same game. It is a very expanded edition that adds an enormous amount of content to the game. Persona 5 Royal will now also be available on platforms where it wasn't available before, which is different from GTA V.
Meanwhile GTA 5 is exactly the same game released with no additional content added with each version. Nobody would complain about another rerelease of GTA V if it added as much content as P5 royal did.