A better question might be, 'will night ops to Casey be next'
McMurdo is a lot further south than Casey (YWKS) (78S vs 67S) and as such gets the proper polar night. The Antarctic circle is midway between Casey Station and YWKS. Even in the depths of winter, there is still a short period of twilight.
The logistics of keeping YWKS ready and serviceable during the winter are slightly more difficult than NZIR though....
