The International Trailer was already cut. It was filed with FX that weren't ready for the US based one. It was finished oh...actually about this week. My source says it will "blow our minds" if we thought we saw anything in the US domestic one.
So, perhaps not this week, but if I go by what this guy says, we're looking at anywhere from the 16th to the 21st about. Can't give specifics. But like I said, it's been cut already, the FXs were just being worked on.
Superman's an international icon, it's only reasonable that his international trailer be just as big.