I agree with the point that Final Fantasy will always sell better on Playstation. The japanese and european markets are important for this point. But I want to point out something else. At Ps2, Playstation hat exclusive rights for huge franchises like Final Fantasy, Kingdom Hearts, MGS or more western games like GTA. During the Ps3 / 360 generation, they lost all of that deals. Don't you think it is a thing for Sony to get this franchises back? For marketing of Ps4 and even for Ps5 it would be a heavy point to "be the home of Final Fantasy" or "be the home of all this franchises". Maybe GTA is to big to get it exclusive again, but to regain the more japanese franchises could be a very huge point to convince even more poeple for their brand. And like said before, it will give smaller developers a sign that playstation is the platform to develope for, with the audience nearly completly on the platform.