Mass Effect 2 owners—specifically, original owners—will get all new downloadable content via the game's Cerberus Network, with five new missions coming next month in the "Firewalker" pack.
The downloadable mission pack features the Hammerhead heavy assault vehicle prominently, one that "hovers over the battlefield at up to 120 kilometers per hour and features a guided missile system ensuring accuracy even during aggressive manoeuvring."
That Firewalker pack will be priced at "free" for Mass Effect 2 owners already on the Cerberus Network, namely those of you who purchased it new with a working redeemable code.
Kotaku AU Note: No date yet, just "late March".
Mass Effect: The Cerberus Network [Bioware]