this video popped up when some lucky ass got the PS3 version early and beat it. seems that when you beat the game, one of the unlockables is this trailer for Bioshock 2:
pretty sweet deal right? 2K released a statement about it the trailer:
BioShock 2: Sea of Dreams is part of a prequel and at the same time is a sequel, so you’re kind of close on the interpretation of the trailer. The rising replica of Rapture can represent something to do with this or something part of a bigger surprise that everyone has to wait and see to play. -2K Marin Developer Charles Shechbeck
i haven't played the first Bioshock yet. now the next one coming......fuck.