I’ve seen a little discussion on this so here is what bits I know about it:
There is a brand new feature for currency display:
Euro currency to be shown by default to French and Dutch ips
Australian Dollars to Australians
Canadian dollars to Canadians
It will affect only presentation (payment is still on usd), and the currency could be changed by the users back to USD from the footer. An explanation message is being sent out to the relevant sellers.