According to Jordan Thomas, formerly an employee at 2K Games, which is in charge of developing the next BioShock game, BioShock 4 should break free of the chains of its predecessors and make more of an effort to be distinct. Thomas has worked on every BioShock game before now.
As Bioshock Infinite so handily pointed out, there’s a theme going through the Bioshock series that gets even more pronounced with every game: that there’s always a man, there’s always a city, and there’s always a lighthouse. The various games all draw on one another for inspiration.
However, Thomas believes that the next Bioshock game needs to be “unbound”, which will he believes will help to make the game even better. While all of the Bioshock games have gotten positive reviews (even Bioshock 2 which, while getting a positive reception, got a milder one than the other games), the ever-present theme might need a break.
While that may be narratively inconsistent since Bioshock Infinite brought up the existence of multiverses that were all linked by the three concepts of man, lighthouse, city, hopefully Cloud Chamber, who is working on the upcoming Bioshock 4 game, will be able to break from it in a believable way.
Since Thomas worked on every Bioshock game before now, including serving as Creative Director on Bioshock 2, he’s probably in the best position to give an opinion on what he believes the next Bioshock game needs.
Since there hasn’t been any sort of indication on what Bioshock 4 will actually be about, including where it will take place or what the story will be like, we’ll just have to wait and see until the game is officially unveiled to see what new direction it will go in, if at all.
In the meantime, all we can do is wait and see how the game turns out.