If you have ps plus, you can just upload all of your game data, and download it to your PS4 pro when you install the game again.

Thats what i did anyway.

If you're getting a Pro, you may also want to think about getting a SSD or a hybrid. It significantly reduces load times, especially changing zones. THats gonna be helpful during early access when a storm of people will be trying to log in at the same time lol.