It's not like Nintendo needs Sony IP ... it's gravy. If Sony can sell a few million more of some of these games it's up to them if the cost/benefit outweighs the value to the Playstation console brand. Their new president did say he wants more multiplatform content to maximize profit margins, that's a fact.
There's likely a good number of big ticket IP Nintendo will be getting (back?) this gen regardless, Call of Duty is already one, Street Fighter is probable, Final Fantasy and Kingdom Hearts have a high possibility of happening given recent sales fall out and new strategy from Square-Enix. Madden NFL was always probably gonna happen with a Switch upgrade. With Microsoft's hardware division falling apart, things like Halo and Forza could be on the docket soon enough.
There's a lot coming already as is.
