Well... Even if you do get the code and manage to activate it before everyone else, you still won't get to start right away, if that's any consolence.
Personally I'm expecting the Keep to be a much more detailed version of the interactive comic 'Genesis' for Mass Effect, just Dragon Age artworks style, given the leaked screenshot.
Main reason I'm interested is to see if I remember the key elements, how long it might take me to completly re-create at least one of my walkthroughs (my personal canon line) and to see how far they are already, like if I can even do a complete walkthrough. Also, having tested software as a former job I think it will be interesting to see how it works on voluntary base for a video game :3