That actually makes a decent plot Ephraim. Except I hated the bad ending in Bioshock. It seems to be lacking compared to the good ending and I never liked the idea of the main character being that much of a douche (but that’s because I injected most of my own morals into the character making me emotionally invested in his well-being).
Plus, you’d have to remember that with the bad ending the Splicers are free from Rapture and on that sub, which means they probably have access to the mainland.
Also, they’d have to open up the rest of Rapture if we returned to it because it wouldnt be nearly as interesting trudging through the same places again. And there’s the fact that the city was already falling apart and the fact that you beat the hell out of the main power generator wouldnt help. That place was pretty much collapsing in on itself by the end of the game.
And there’d be almost not Big Daddies since you killed them all.
Actually…on second though let’s not go back to Rapture. It’d be a silly place.
(Fan Speculation about this game excites me. More! There must be more!)