In an interview with BimmerFile, 3 series product manager for BMWUSA confirmed, for the US at least, a 320d (180 hp, 280 ft-lb) which may be called 328d. He calls it both in the interview. Surprising to me they haven't decided what to call it yet. Let's hope for 320d.
http://www.bimmerfile.com/2013/01/20...r-interviewed/