So Im a little confused. Do the people who signed up through the email get the Physicial/Digital code copy of the game guaranteed? or do only the people from the kickstarter event get a copy, or is it going to be sold somewhere and its first come, first serve?
If you sign up during this current promo, you're showing interest to buy a physical copy of the game. They will only make physical copies if they hit 2500 requests. If they don't, then the game doesn't get a physical release and is only released digitally on PSN. But if a physical release is made, it will include code for a digital copy as well.
If you were a doner during the Kickstarter, and you sign up during this current sign up, then you will receive a special cover on the physical release of the UMD (if it gets made) whereas others receive a regular cover.
You're not getting anything just for signing up. If they hit the 2500 requests, then I'm guessing they'll follow up with payment instructions and whatnot. If they don't hit the 2500 requests, then they game will be released digitally.