Very interested to see when this hobbit film will end. Should give a good indication of the focus of the second Hobbit film. I expect from this trailer that Smaug will be the focus of movie #2, we might not even see him in this film (an end at the elvish fortress or on the river running?).

Who knows, the rumours have been floating around since day dot that the second film may focus on the time gap between the hobbit and LotR, and of Aragorn and Gandalfs adventures during that time.

Hopefully there wont be a year between the two like the LotR movies, it's too long a wait!