Good news, the 1B config also has anti aircraft and surface capabilities over and above the baseline anti missile function. I wonder if these will be in addition to or in place of the Typhoons, I suspect additional.
Same vein but more speculative, I wonder what is happening with the self defence length Mk-41s from Sydney and Darwin. They are pretty new but not used on anything other than our FFGs, while I believe there is space and weight on the LHDs for at least one eight cell Mk-41 each. Factor in the Canberras have the same core combat system as the ANZACs, plus their shear size and stability, adding the key elements of the ANZAC ASMD upgrade would not be outside the realm of reality.
Not saying it will, or even should be done, just speculating as to what we could do , especially as fairly new equipment becomes available from a parts pool as ships are upgraded and retired. For example, what has happened to the old fire controls from the upgraded ANZACs or the STIRS from the FFGs as an interim until a CEAFAR Mast becomes available from the ANZACS as they begin being replaced in the early 2020s?