The press release can be found HERE at TV By the Numbers. And here's the important part:
As Law & Order: UK returns to BBC AMERICA screens for its thirteen-part third season this Summer, the critically acclaimed drama, based on Dick Wolf’s award-winning long-running crime franchise, brings some new and some familiar faces to the criminal investigation team, as well as some hard-hitting storylines. Law & Order: UK premieres on Wednesday, August 17th at 9pm ET/PT.
Woo! We're getting the full run of episodes in the U.S. Which means we will see the two-parter as intended. ;)