EK418/9 will reroute DXB-BKK-SYD-CHC instead of AKL, and will continue to be operated by the 77W.

The A380 service, IIRC, is an additional third daily to Sydney operating DXB-SYD-AKL (or is it replacing the current EK412/3 operated by the A345?) Either way the A380 will not be operating EK418/9.