Everyone obviously immediately thinks that when he says that he's heard the PS5 is about "history" that it's just referring to BC. But I hope it's more than that and really a general console philosophy for it. This generation more than any other they've seemed to start caring about their past more. They've gotten behind and heavily promoted remakes like Crash, Spyro, RE2 and FF7R, they've remastered Parappa and remade SotC and MediEvil. In previous generations they'd only really look back to the generation before that one. But they have so much nostalgia built up, both from first and third party titles, that it's amazing how little they tap into that overall. It's something that Nintendo has excelled at over the years and has allowed them to continually keep a number of IP's relevant.
They've been shown how nostalgic people are for old PS platformers this generation. Ape Escape is super obvious, and at launch would get a ton of exposure. You've got games like SOCOM, Warhawk and Twisted Metal that would all be great as F2P games as their popularity is largely driven by their multiplayer side. JRPG's like LoD and Wild ARMS. A remake of IQ would make for a great and small digital release. Even talking specifically about Japan they have something like Ore-no Ryouri. They've got a ton of stuff they can work with but it's been largely left in the past as of now.