Unlikely. There is far more interest for a Test Match in eastern Sydney than there is for a Waratahs game in Western Sydney.
If the Tahs got 20,000 it would be the biggest crowd of the year - according to austadiums, the attendances have been as follows:
Sun 23/02 v Force @ SFS- 15,785
Sat 01/03 v Reds @ Homebush - 17,580
Fri 21/03 v Rebels @ SFS - Unknown
Sat 19/04 v Bulls @ SFS - 15,773
Sat 03/05 v Hurricanes @ SFS - 17,221
Sun 18/05 v Lions @ SFS - 19,639
The Lions game points to the potential for decent attendance in the last two weeks. The Brumbies game, even at Homebush, potentially decides the top of the Australian conference. The Highlanders will hopefully still be in contention when we face them a week later at the SFS in order to see if the kiwi fans will still come out.
After the Wallabies series, I'm hoping for 30k at Homebush this weekend. I'll be there, perhaps with the wife and kids in tow.