Insomniac the one who have been giving Marvel Spider-Man to make there own have been asked about the difference between PS4 an PS4 Pro. The way to answer that is looking at Rachet & Clank.
If you are left scratching your head it is an easy answer. Basically yes they are different title but they are made by the same developer and thus will use the same in house engine. So if you want to know if there will be a graphic difference between the two systems when it comes to the game use Rachet & Clank as reference since it will use the same engine.
As always thank you for reading.