It doesn't. Not yet.
The "early 2015" people float around was actually placeholder text from an early build of the website we had made but wasn't supposed to go out. Then, oops, those copies of GZ got leaked in the Middle East and people had a website to go to that wasn't supposed to be live yet with placeholder text.
Continue to hold on to your code, they will be instrumental in redeeming your GZ->TPP loyalty reward, and we will have more details for that as we come up to September 1. But until the game comes out there's really nothing to worry about, yet.
Fantastic, thank you.