Only a shortie for Ken & chums' latest, but it's pretty confident proof that we're not in Rapture anymore, Andrew. Rocket-spewing zeppelins, anti-gravity powers, gruesome splatting via sky-crates and, at the end, a hint of how large the environments may be. Also, it really plays up the fact that this is a buddy game - but not exactly a buddy comedy.
Looks like the most all-out action 'Shock so far, which isn't exactly going to bring those who felt betrayed back to the court of Irrational, but it looks spectacular, and so colourful.
Also, the now rather prettier Elizabeth has definitely been redesigned to look less creepy - here's her original look for contrast: