Many were disappointed--but not necessarily surprised--to see BioShock Infinite delayed to 2013. In an open letter to fans, studio head Ken Levine promised that "BioShock Infinite is a very big game, and we're doing things that no one has ever done in a first-person shooter... The great can be made greater, and we owe it to both ourselves and to you, our fans, to take this opportunity."

To keep the team focused on meeting its new 2013 date, Levine said that the team will skip media events like E3. But what could the team be so fervently working on?

Could the team be working on some kind of multiplayer mode for Infinite? A job listing on LinkedIn certainly suggests so. "Right now we're looking for a talented and experienced individual to help us with the networking aspects of BioShock Infinite," a job posting for a Network Engineer says. The hire will have to "work with the team who created BioShock network code" and will be "responsible for delivering a robust, scalable, and responsive client-side networking support on the PC, PS3, and Xbox 360 platforms."

So far, Irrational Games has shown nothing about a possible multiplayer offering for Infinite. However, the franchise has dipped into an online mode before, with BioShock 2. While competitive multiplayer would stray far from offering something "no one has ever done" before, it would be intriguing if the relationship between Elizabeth and Booker could somehow be replicated in a cooperative mode.