OK. So this has been covered. If you bought the physical edition in store you should receive a code on your receipt. If you bought it from the website, it will be emailed to you in a few days. You will not receive the actual game disk before the 4th but with the code, you will be able to play it 5 days early from the website where you redeem. They also have not said if you will be able to use the Imperial stuff right away, early access, but I did talk to a dev and they said that while they have not officially release anything on it, it will likely happen.