They have run A330-300's on this route before, see this link:
http://www.qantas.com.au/internation...KT_to_AUS.html
It's in Indonesian, but they ran A330-300's on the extra services on:
10/17/24/31 January 2008.
Anyway, it is good news. This service has sorely been in need of an upgrade.
NB, the link for the
Skybed Schedule on qantas.com.au is
here.