Just noticed on the Audi UK webside they are currently listing the following for the 3-door 2.0 TDI A3:
2.0 TDI Manual - 150bhp - £18,080
2.0 TDI SE Manual - 150bhp - £20,080
2.0 TDI Sport Manual - 150bhp - £20,080
2.0 TDI DSG - 157bhp - £19,505
2.0 TDI S-Line Manual - 150bhp - £21,630
2.0 TDI DSG SE - 157bhp - £21,505
2.0 TDI Sport DSG - 157bhp - £21,505
2.0 TDI S Line DSG - 157bhp - £23,055
2.0 TDI quattro Sport Manual - 161bhp - £21,505
2.0 TDI quattro S-Line Manual - 161bhp - £23,055
So it seems that they have increased the bhp on DSG models from 150 to 157 and on quattro models to 161.
Perhaps they will soon also list the 168-170bhp versions as well.