The terms of the LHR offer for AO crew are identical to that of S/H and L/H crew in Australia. There is no difference. Once the contract in LHR has been completed the ex AO crew will return to the S/H base they chose before leaving for LHR.
Some AO CSM's have been offered direct entry CSM positions with LHR.
AO crew have been offered S/H positions in SYD,MEL,PER and the CNS base. There is no offer of BNE base.
Quite a few crew are taking (VR)redundancy. Many are taking LHR as they want to continue sole international flying. And the rest will be spread amognst the S/H network.