DagBladet, a Norwegian newspaper, is reporting that Mass Effect 2 will have DLC available soon after release. Besides the usual items like armor and weapons it is also reporting that a new squad member, plus a planet will be available as DLC.

More info of the two, but warning it contains spoilers:

The planet is where the original Normandy crashed, and the player can place a monument in honor of the deceased crew members.

The squad member, which brings the total to 11, is Zaeed Messani, bounty hunter, he has similar skills with the soldier class.

The price of the DLC is unknown.

Source, screenshot of original story(the article was removed).

Edit: What was my brain doing when writing the title? Meant to write Rumour.

Sorry for bumping my thread, but one of the DLC was confirmed, the extra squad member, which probably means that the other is true too.

Also some details on the Cerberus Network:

BioWare, a division of EA, today revealed 'The Cerberus Network', an in-game portal in Mass Effect 2 that will keep fans engaged with the rich and dynamic Mass Effect universe through downloadable content (DLC) and news. 'The Cerberus Network' is activated exclusively by original purchasers of Mass Effect 2 through a single-use unlock code that comes included in retail and digital versions of the game worldwide. 'The Cerberus Network' is a conduit for players to receive bonus content as well as daily messages and news on upcoming releases for Mass Effect 2 for no extra charge. For players who do not buy the game new, 'The Cerberus Network' can be unlocked through a one-time, in-game purchase of a new activation code*.

Mass Effect 2 is the first blockbuster video game release of 2010, having recently been named as one of the "Most Anticipated Games of the Year" by the New York Times, IGN and Wired.

"The Cerberus Network augments and extends the rich universe of Mass Effect 2," said Dr. Ray Muzyka, co-founder, BioWare and Group General Manager of the RPG/MMO Group of EA. "We're thrilled to be able to reward loyal BioWare and Mass Effect fans with ongoing, high quality content and provide a direct channel for our players to dive deeper into the intriguing lore of Mass Effect."

Players who access 'The Cerberus Network' will receive the first DLC pack on January 26th (launch day in North America) featuring new missions and in-game items. Included in this pack is a mission that introduces Zaeed, a rugged and deadly gun-for-hire who is recruited to join Commander Shepard's mission to save mankind.

After launch, BioWare will release another DLC pack for Mass Effect 2 that introduces the Hammerhead, a new vehicle in the Mass Effect universe. This agile hover tank features improved handling on rough terrain and maneuvers deftly in combat -- a necessity for players traveling across harsh planetary environments throughout the galaxy. In addition to this new vehicle, BioWare will release new missions and unique in-game items, including Cerberus Assault Armor which boost shields, health and heavy weapon ammo and the M-22 Eviscerator Shotgun.

The Mass Effect trilogy is an epic science fiction adventure set in a vast universe filled with dangerous alien life and mysterious, uncharted planets. In Mass Effect 2, players will step into the role of the heroic Commander Shepard, commanding a crew of the most dangerous operatives from across the galaxy on a mission so challenging that it's potentially suicidal. Featuring intense shooter action, a rich futuristic storyline, stunning space exploration and emotionally engaging characters, the game delivers an unparalleled cinematic experience.

Source

Piss of Bioware, stop releasing DLC! I want to be given a game, then not have buy even more content, there is plenty of content on the disc, but what really annoys me is they have DLC so soon, they clearly made it as part of the development process.

They are doing this with Dragon Age as well, just get on with the next game instead of making us buy loads of DLC

I think they said these would be free for a short period after launch.