The listed details all make it sound like a remaster and not a remake, so at least it's not like they're making the game all over again.
I definitely think like many here that Sony's compulsion to bring all their recent titles to edge of graphical fidelity is overkill and that their time could probably be better spent, but I also think people are jumping the gun assuming this will be a 70$ standalone title like Last of Us Part I when nothing really points to that.
For now I'd assume there will be an upgrade option for existing owners like they have done with other titles, probably not a free one, but I don't expect they'll try to sell it off as a new game.
Try out my free game on Steam








