Quote Originally Posted by HEC View Post
Yes - as long as you'll login with the same SE service account this Friday all your characters and progress will be kept. You don't need to download the game client again (don't delete the beta Stage 2 one you have) - it will be the same client with some small patched realeased (most likely) this Thursday. And yes - in the Mogstation the PS4 beta will be listed as one of the services on your account.
This, with one caveat. This is all assuming you preordered and got the code for early access on the 11th. If you did you can redeem the code now and you should see early access in your services list on your PS4 under Settings > PSN > Account Information > Services List. If not, you will be able to play on Monday the 14th.