User blog comment:Delta daddie/Plot Idea's for Bioshock 3/@comment-1703246-20100328022155

I'm thinking it's set around the same time as Bioshock 2 (1968) but in areas that Subject Delta didn't go to, a story that's connected, yet seperate, as Grace Holloway and Brigid Tenenbaum are unaccounted for past certain points in Bioshock 2, Brigid Tenenbaum did say that there were others she had to help before the city drowns, she probably wasn't just talking about Little Sisters.

Bioshock 3 might have a Left 4 Dead / Borderlands type gameplay, only way to top a prototype Big Daddy with dual weilding plasmids and weapons. Co-op would make things interesting and with Single Player it might add replay value as they could add different strengths and weaknesses...