Irrational Games offers the BioShock Infinite Launch Trailer to celebrate tomorrow's release of their first-person shooter prequel. Word is: "Watch the mysterious and powerful Songbird pursue Booker DeWitt and Elizabeth, who are trying to make a desperate escape from the sky-city of Columbia."
Not sure how DLC is going to work with this game? It's not open-world and once you're done, you're done. I guess they can handle it like DX:HR did, with the DLC essentially being a separate campaign.