We have learner rider laws here that restrict you from riding anything bigger than 660cc for your first 15 months (3 months minimum learner permit followed by minimum 12 months on provisional license) so the 500 is the only Harley I can legally ride as a beginner unless I can find a 350cc Sprint & they are VERY scarce here.
Apparently HD Australia will not be releasing the 750 here anyway, this may be because the 883 range is already well established for those who are on their full unrestricted license.
Im hoping that if enough people put deposits down HD might bring some in a few months early.