It’s already been revealed that BioShock definitely will not have multiplayer of any sort, but Ken Levine spoke with IGN to expound on why:
“We look at it this way: we play around with a ton of things. So much of it is experimental that you really have no idea.
“So, like everything, you try certain things, and the multiplayer, we got to a point where we said ‘OK, this is the you-know-what or get off the pot moment.’ and we decided to get off the pot because it wasn’t there yet.”
In the end, Levine commented that the team came up with extraordinary stuff but simply did not have the desired resources to fully complete the experiment, to make it up to par with the rest of the game.
“..we weren’t going to ship something that was not consistent with the overall package.”
Levine opted to not discuss what exactly the studio was creating for multiplayer, saying that they just might go back and revisit it. We can speculate on multiplayer DLC but honestly, I don’t think even Irrational Games knows if they’re going to plan out something like that.
For now you can vote on your choice of a reversible cover for the game instead, whiling away the time until BioShock Infinite’s release on March 26, 2013 for the 360, PS3 and PC.