2K have hinted on Twitter that there maybe some BioShock news on the way. The picture came from 2K's UK Twitter account.
They also tweeted the text.
Oooo, what COULD this mean?!The image comes from an area in the original BioShock called Fort Frolic. Could this mean a new BioShock game back in Rapture? Or perhaps a re-release of the first game?
This is the first real news since Irrational was disbanded and considering it was only on 2K's UK Twitter account and not their main one it is quite unlikely that this is going to be something huge.