Run the sector same as EK do to Aus/NZ, 2 x Capt and 2 x F/O. No need for S/O (was there ever a need!!) Relief crew Aus-DXB operate the sectors ex DXB whilst operating crew rtn to Aus following night. Relief crew rtn as augment day after their LHR-DXB. That would be the most efficient way to do it.
How is that any more efficient than running two S/Os (who whilst well paid are still on significantly less than captains and F/Os) between Aus and DXB? The S/Os don't need to wait for the Captain and F/O to get back from LHR, they have their min slip and come back to Australia witha different crew. What am I missing?