BioShock 2's Michael Kamper has said that due to the uniqueness of Rapture, there are "many stories" that 2K could tell within the game's universe.
Kamper also revealed that he would like to see the brand expand into toys, collectibles, and the like.
"Rapture is probably one of the most unique places ever invented," the audio lead told CVG. "I have to imagine that there are many stories that could be told within its walls.
"But right now we're just focused on making a successful launch for BioShock 2.
"Personally I would love to see all of those things [toys, etc.] available but I can't speak to future plans regarding any brand expansion. We have some pretty intense fans who I know would just devour all of that material and 2K's dedication to quality would make sure that every product would be something worth spending your money on."
BioShock 2 is out now worldwide, and reviews for it have been pretty positive for a sequel.