2K Marin has posted a job listing on its official site for a Multiplayer Systems Designer.
In the description, it mentioned an unannounced title and the ideal candidate will have experience with XBL and PSN implementation.
The full listing is through the link there, start speculating what it is now.
In the meantime, 2K Marin has a little game that you may have heard of called BioShock 2 coming out on February 9, and there’s some DLC planned for it as well.
This time, you’re the Big Daddy, daddy.