its been anounced which is awsome because iv been going back and playing the first one
But as for the second game im really not sure.. if i continues on after the first game i cant think of where it could be or a story but it could be a pre-quel and maybe we get to see the downfall of rapture of it being this great city then just turned into nothing but chaos!
You could have money to actually go into shops and buy things and if you hack something you will get a fine or the "police" (or something like that) would try and track you down and so on.
Big dadies have to make an appearance but as i said if it continues on from the old story it would have to be someone going back to rapture and i know it sounds far fetched but if it was, without something really different i could smell it being very familiar with the first...
but knowing how amazing the first one was and you cant put every IDEA you have into one game or it will get a bit too much.. but think of left over designs and so on which could be inprovised and a whole load of ideas going into it!
On a final note what i have to say is that this game is NOT going to dissapoint!
:EDIT: Oh and about multiplayer that would be awsome but something i would like to see is co-op
would really change things around