It’s been just over a week since Portal 2 hit store shelves and hard drives around the world to overwhelming praise, and Valve has already confirmed that extra content is on the way. The developers aren’t saying exactly when the DLC will be launched, or what the content will consist of, but we do know that the wait will be shorter than many may have expected.

Many Portal 2 fans may still be making their way through the game’s singleplayer and cooperative campaigns, but it’s a safe bet that plenty of Portal fans are already hungry for more. Some upset fans have gone so far as to make open attacks on Portal 2‘s campaign length, so the announcement that there is DLC incoming should do something to ease their suffering.

In an interview with Fast Company, Valve’s Vice President of Marketing Doug Lombardi was asked if extra missions were anywhere on the horizon for the game. While the team generally keeps such details close to the chest, Lombardi’s response put any doubts to rest:

“We will be announcing some DLC for it, so folks can keep a look out for more content coming this summer. We’ll be putting more details out about that in a week or so. We’ll support that with more videos or more comics.”

There’s no shortage of directions that DLC could take players, with Portal 2‘s narrative spanning the entire history of Aperture Science’s various discoveries. Valve could even make the dreams of every fan come true and feature some serious crossovers between Portal and Half-Life. Or at the very least, give us a look at the nausea-inducing cancelled gel.

We could only specualte on the size or price of any Portal 2 DLC, but if it’s made to the same standards as the full game, you can count on it being a must-play. Erik Wolpaw mentioned in the past that dialogue and voice recording was performed with DLC in mind, but wouldn’t go into any further details to avoid spoilers. So the upcoming expansion could focus on Aperture founder Cave Johnson, Wheatley, or GLaDOS.

Valve has already proven that the various puzzles and mind-bending mechanics of Portal were too big for one game with the release of Portal: Still Alive on Xbox Live. The release contained an additional fourteen puzzles, so fans can reasonably expect at least a similar amount of extra content this time around. Hopefully the developers will be bringing just as much story and development as they will extra puzzles, especially with the voice cast assembled.

What kind of DLC would you like to see for Portal 2? Even deeper exploration into Aperture’s beginnings? New mechanics? We have to remember, there is a major chunk of time between the two games that could be full of surprises as well.

We’ll have to wait until some time this summer for the release of Portal 2 DLC, and count on us to bring you an official release date when it’s announced. Portal 2 is available now for the Xbox 360, PS3, and PC.

Source: Fast Company (via Joystiq)

tags: PC, Portal, Portal 2, PS3, Valve