Posted over on Criterion Games' website is an announcement of a new serving of downloadable content for 2009. The post directs readers to the in-game Criterion Games Network browser for the PC and PlayStation 3 versions. We did the work for you, and found a listing for Burnout Paradise Cops and Robbers in the network's 'coming soon' feed.
Unfortunately, as of this posting, clicking on the item in the PC version yields the following message: 'News is currently unavailable, please try again soon.' We'll update as soon as more details are available.
Burnout Paradise: The Ultimate Box was just launched this week for the PC. The original version was released back in January of 2008 for the PlayStation 3 and Xbox 360.