Please note: Their are three different components to the patch, update, DLC, or whatever you want to call it. A paid component, a free component, and a store component. The free part is for all players.
"We want people to be playing with their friends; we don't like to isolate people," writes Nathan Richardsson , Defiance Executive Producer.
Check out the full list of expected updates:
*UPDATE* Defiance forum has confirmed the patch/update/DLC will commence May 10th 3am for the PC, Xbox 360, & PS3.