A developer's LinkedIn profile may have some clues about what the mysterious downloadable expansions for BioShock Infinite might include.

We already know there will be three additional pieces of DLC for BioShock Infinite, all of which are available together in the season pass. What we don't know is how in the world there will be DLC for Infinite. Fortunately, Polygon and Superannuation did a little digging, and discovered the LinkedIn profile of 2K Games senior animator Michael Shahan.

Though the content has since been removed, at one time, Shahan listed on his resume that he did R&D for "a new companion character" under the listing BioShock Infinite DLC1. Irrational and 2K haven't said a single word about future content other than that it exists, so it's curious to learn Elizabeth, one of Infinite's best features, may be replaced in the DLC.

Then again, given the ending, just about anything is possible with BioShock Infinite. With E3 just around the corner, it's likely we'll learn more about at least one of the add-ons. Irrational's Ken Levine has been good about not showing all his cards in the past, but now that our curiosity is piqued, we hope he lays everything out on the table soon.