It was confirmed that T3 opens on the 14th October. Initially the terminal will service the USA and GCC routes only. The trial was nothing amazing couldn't get in to any of the lounges which was a pity. The terminal itself is enormous, some of the DF shops were stocked but not open. The seating outside of the departure gate area is limited. Passport control was difficult to judge. The email and first and business class fast track gates are to the left of immigration. Not sure what Emirates will learn for the exercise, it seemed to be more of a PR exercise.