Although Arthur already harbored the idea of establishing an empire, Australasia would certainly not act until after the demise of the Russian Empire.
Even if the Russian Empire perished, the establishment of a new empire would require waiting for a certain period of time.
For one thing, Arthur and the Australasian Government needed to prepare, allowing the people to better accept the establishment of the empire.
Secondly, it was to avoid discontent among the Russians within Australasia. After all, it would indeed sting a bit for Arthur to establish a new empire right after the fall of the Tsardom of Russia.
However, before taking action for this purpose, certain preparatory work was still very necessary.
Beginning in November of 1930, when reporting various official news, the civilian media in Australasia would subtly describe Australasia as a great nation and empire, using this to gauge the reaction of the people of Australasia.