Do you know I have wondered about this too. There was a recent and small ceremony in Queenscliff, Australia, where the first shot was fired, and there has been the odd Great-War book launch. Beyond that ANZAC troops were first deployed in Egypt and Gallipoli in 1915, and the Australian siege artillery brigade was the first Australian unit to become active on the front line in France, and that was in March 1916... so there is bound to be some community activity here in the future. There will surely be a big bash in November 2018.