Theories on Possible Plot Developments in Bioshock 2

This is a small article that is done mostly for fun. I have not purchased Bioshock 2, but I am a huge fan of the first game. Below are some possible ways the story could be headed in; these are speculative and should not be taken as anything but conjecture. Obviously, since the game has been released today, the story will eventually reveal itself.

Most of these theories require knowledge of the first game, and I warn that there are some SPOILERS for those who have not completed the first game.

1.Subject Delta, the protagonist of Bioshock2, most likely was a former denizen of Rapture. Subject Delta must have originated in the city itself to be the first prototype Big Daddy. This is an obvious point, but one that must be established in order to predict other parts of the narrative in Bioshock 2.

2.Subject Delta was deactivated for a reason prior to the events of Bioshock 2. The reasons could be many. As the first prototype, he may have been coupled with major flaws that were rectified in later versions.

His simultaneous use of ADAM and traditional weaponry may be the answer. The Big Daddies encountered in the first game do not use ADAM. Abuse of ADAM led to normal citizens to be horribly scarred physically and mentally. Therefore, it may be possible that Subject Delta was unstable or becoming so when he was shut down.

3.Big Sisters are one of the new antagonists that must be fought in the second installment. Apparently, they were former Little Sisters who are now grown up and have immense psychic abilities. There is the potential idea that one of the Big Sisters is the former Little Sister of Subject Delta. Delta was undoubtedly paired with a Little Sister during his primary run. Although he was incapacitated for a period of time, his Little Sister may have evolved into a Big Sister in his absence. This may account for [one of] the Big Sisters' hatred of a Big Daddy that interferes with the Little Sisters' jobs collecting ADAM. Although it has been explained that they are enforcers of Sophia Lamb, who wishes to collect ADAM for her own purposes, their task may coincide with jealousy at being replaced as well.

4.Tenenbaum may be hiding something this time. In the first game, the antagonist hinted that Tenenbaum was not as benign as Jack, the hero, viewed her. Although he may have said this to undermine Jack's confidence, he could have been telling the truth. In Bioshock 2, she may reveal that her intentions in reviving Delta are not completely for the sake of Rapture or the girls.