Another thing worth noting is that your settings dont transfer over. They're stored on your PS4, and not SE's servers. So when you move over to the PC, you'll have all your UI and other settings at their default settings. You could always take a screenshot of your UI in game on your ps4, and then use that as a guide to get everything set up properly again on pc. You'll still have access to the game on ps4 once you purchase the pc license.