Even though there's already a forum like this, I'll make a blog so that everyone get to know.
Back to that other blog, we got to know that we'll receive a in-game weapon if you subscribe for the newsletter.
I bet most of your received the e-mail, but some (like me) didn't. Fernando Melo said in this post on Social BioWare:
"Staff of Parlathan = the staff-sword from the trailer (and incidentally also the inflatable staff-swords we were giving away at the cons)
REDEEMING YOUR CODE NOW IS OK! We do not expect you to have to hang on to the email until launch.
However, it might only appear on your list of DLC here on social closer to DA2 launch. Unless you got an error when redeeming, the item is there and we'll roll that out on to your list of co…Read more >