Doug Lombardi of Valve, interviewed by the site FastCompany , revealed that the first additional content for Portal 2 will be announced in a few weeks and that their release is expected in the summer. To bridge the time needed for the development of the DLC and not to bore the players had to repeat the same levels of co-op, most likely will also be published video and new comics. There are currently no details on the content of the expansions, or whether a new campaign or new levels of cooperation.