The PS5 probably won't be here till 2026 at this rate, hell they might dump generations entirely and go for their current console iteration models, so you know what make a Versus XV Trilogy(That encompasses the entire plot of Final Fantasy Versus XIII) make it seem like a sequel to Final Fantasy XV, make Final Fantasy Type-Next, and Final Fantasy X-3
Put them all on Steam, PlayStation 4, Xbox One, and Nintendo Switch.
Then for a launch title of the PlayStation 5, after years of extensive planning and Luminous Engine testing, FINAL FANTASY XVI coming to PlayStation 5, Xbox Two, Super Nintendo Switch, and Steam