There is no reason for Tesla to make any statements about charging systems for vehicles that are not yet released. Aside from Tesla's CharIN membership, there is no evidence to support it, but I personally believe that that the soon to be released European Model 3 will have a CCS2 inlet that will support existing European Superchargers and CCS Type-2 chargers. When RHD is released for the UK it will have the same inlet, which should make it obvious that Australian Model 3's will be the same. It will take a design refresh for the S & X to be updated to be the same. There is simply no room in the existing charging socket area for a CCS2 inlet.