I don't think they'll travel around the world, isn't SHIELD an american organization in this version? Operating internationally would make them criminals.
That's unclear. The use of "Homeland" in their current acronym implies an affiliation with the US Department of Homeland Security, yet in The Avengers
they seemed to answer to some sort of international council.
Also, there's a shot of a chase happening in Paris in the trailer: http://wac.450f.edgecastcdn.net/8045...013/05/s25.jpg