New Bioshock Infinite trailer

The last Bioshock Infinite trailer was rather intriguing. It didn't really look like it belonged in the Bioshock universe, and while it was eye catching it didn't give any insight on the plot of the game. This new one that premiered at E3 shows off a lot of gameplay but it still doesn't look like it takes place in even the same Universe as the previous Bioshock games. And I say this as someone who has owned Bioshock for at least 2 years but has never played it. Basically what I'm saying is, I'm the Walter Cronkite of video game blogging.