User blog comment:Charly Cohen/BioShock 4/@comment-4959479-20130728220720

I think the only real sort of location left for a new city would be underground. Aside from that, there are a few Bioshock constants that need to be considered.

The Man and the Lighthouse

Naturally the city entrance would have to be hidden in a lighthouse, perhaps on land instead of in the ocean this time. A high speed underground railroad would do the trick from there.

Extreme Ideology

All Bioshock games have cities founded on and run be extremists in whatever ideology they choose for themselves. This is a must for a new city. The only problem is, I'm having difficulty coming up with an ideology that is dramatically different from whats been in previous games. I guess anarchists haven't been done, but founding a city based on anarchy seems a bit counter intuitive.

Time Period

Bioshock needs that "Old Timey" feel to work. They made that work pretty well in Rapture and Columbia, but now they'd need to find a new time period without overlapping with the other two. If they set it after the 1960s, it runs to risk of being too modern. Before the late 1800s and the technology becomes a bit too much of a stretch. Inbetween may be their best bet, but that runs the risk of overlapping too much.

Deep Lore

If there was anything Infinite was lacking in, it was the lore behind the enemies. They could have done some pretty compelling stuff with the Handyman and Songbird, but instead their backgrounds were hardly explored. Vigors were just flat out lacking in explanation. These are things they really need to keep in mind for new games.