The new SYD-AKL-JFK starts as 3 weekly and they want that to increase but not sure where those frames will come from for any increases?
SYD-YVR has been stuck at 3x weekly whilst AC have announced additional YVR services. Loads between Australia and Canada have been very strong since covid.
SYD-SFO restarts next year only 4x weekly instead of daily due to lack of B789s. Same story with SYD-SCL restart.
You then have the successful PER-FCO flights which I'm sure QF would love to make permanent year round but can't due to lack of B789s
Thought I'd respond to this separately. You're right in that the B789 is very tight at the moment. Generally speaking, the expanded B789 over the next year is due to A380 returns. For example, SYD-AKL-JFK frames will come from SYD-LAX and MEL-LAX which are in some progress of shifting back to A380 and will be all A380 by the time SYD-AKL-JFK begins.
There has been constant tinkering with the QF schedule, both short and medium term, for example, A380 return on MEL-LAX has been adjusted multiple times, whereas odd days of some B789 services (including some MEL-PER-LHR and MEL-LAX) have been removed from the schedule several months out (likely temporary in some cases).
The erratic nature is that the delivery dates of the three remaining B789s are not finalised yet even though they are confident of the broad parameters now. Similar for A380s where they have a window of when each aircraft will return but not exact dates yet for ones that are still to enter their check. They're so desperate for capacity that they're adjusting schedules for the exact day. Once the aircraft lands at BNE, MEL, SYD or LAX (yes, QF take delivery of some aircraft at LAX) on return it'll go into service as soon as possible.