OZ/NZ-UK is such a massive market for EK which they are slowly but surely taking from the likes of BA and QF
I think that's already happened. Any growth now is a market growth rather than at the expense of multi-stop legacy offerings over London.
However I wonder of the Middle East descending into chaos might have an affect. Bahrain is already coming apart.
One of the issues is that they are dumping the smaller aircraft that might have been used to start a third daily flight. The small three class B777-200 fleet is already very busy, the two class B772s are pretty ancient now and the A330-200s are being sold on, two gone already hence it would be a third daily flight with a B777-300ER and that's a lot of seats. Hence on some days you would have an addition B777-300ER and two A330-200s to fill out of MAN. Interesting times.