It has in the local paper here (the Daily Post) that Pacific Wings are applying to do BNE - ROT as part of package holiday deals; not sure if they are looking at this as a charter op rather than proper scheduled.
However, the local airport management do not seem over enthused and are sticking to their guns that the SYD - ROT twice weekly by Air NZ in an A320 will be their launch flights once the runway extension is finished.