The technology underlying is not just new currency, its new era of everything
Generally speaking I don't think that Bitcoin or any other cryptocurrency could be counted as "new era currency" for many reason but one of the main reason I see is that Fiat Currency is not yet phased out, cryptocurrencies are not even dominating the market yet compared to Fiat. In order to be called a new era currency it as a currency must be wildly accepted by people and more dominant compared to Fiat currency.