My apologies for 'Nalanji' folks - yes I knew it was already 2-class, but she is due to go in for the cabin upgrade and will retain the 2-class config.
As to OJB getting 2-class. It is not about the aircraft, but the market. And Trans pacific is certainly a F/J/Y market. While the new QF 747's will displace most of the Trans Pacific configured aircraft, when you add up the number of aircraft QF will have in 24 months, the number they need for their F/J/Y markets, according to my arithmetic, OJA-OJJ as 2 class aircraft will leave QF short in that department. And if as some of you claim she underwent a "D" check recently, then why was the reconfig done at that time?
Wunala is a high maintenance paint scheme, and they are looking to redo certain parts of it that are not standing up well. Add to that is that QF are re-negotiating rights with Belarinji now (there has been a shift in "ownership" of the colour schemes as evidenced by the B737-800). That agreement term needs to be (has been?) extended to allow continued use of the colour schemes
From the 'rumours' I have heard (from senior QF people), OJB will be left as three class, but redirected to other markets as required (as a floater). She will used a bit like Air NZ with their B747-400's. I had the pleasure the other day of flying in the F cabin, when they upgraded all their Gold/Elite J class pax on a transTasman sector, and the Gold Y pax were shifted to the J cabin. A good bit of PR I thought, and QF might score a few points by doing the same with OJB in the future.