I've heard they were going to start building in august from my sales manager. On a similar note, they are not going to be building any A3's for the US with the driver assistance package on the premium plus until September.
I was just told by Audi Financial that my delivery date was October 13. I had to give them my "Commission Number" to extend my lease, and the rep mentioned the delivery date. This jives perfectly with the normal audi lead time (Audi Cars: Build Out and Start-Up Dates) and my order date of July 9th.