I think QF have quite a lot of experience with RNP. They actually pioneered the RNP approach at ZQN. As for Jetconnect and ROT, anything is possible but I would be surprised if it was true.
QF aussie and Air NZ actually worked on the RNP approach in ZQN at the same time. However QF was first off the block and lead the RNP AR approach due to having NG B737. Air NZ had some mods required due to having B733.
QF has some big projects running with 4DT and RNP and is right at the cutting edge of PBN operations.
Air NZ is the lead operator on RNP AR operations with the A320.