Since most of our consumer imports come from China and countries other than the USA, the value of the AUD vs the currency basket rather than solely vs the Greenback is more important for the average Aussie family, IMO.
If the USD nosedives as you expect, what do you think the Chinese will do with the Rinimbi/USD tie? Will the let the Rinimbi devalue too?
This degree of money printing has to impact on the USD's reserve currency status sooner rather than later, IMO.