I've been testing a few things to see if you can import the save from Act 1 to Act 2, but I haven't found a way yet. For now I'd say keep the save file just in case, but if I haven't figure something out to import your previous choices by the time I release Chapter 1, I'll just create a new character creation and let you pick all the important choices at the beginning.
I'll let you know if the save file is important when I finish Chapter 1. Have a great day <3