Any crypto currency is a world digital currency, since its scope is not limited to one state. As for the ripple coin, it is a common coin created to serve the banking system, although it has good functionality. From the point of view of the crypto currency, this coin has a very big drawback, since it is completely centralized. Therefore, ripple by its nature can not be on a par with all decentralized crypto-currencies, and therefore its future is in great doubt.
Isn't it the decentralised cryptos whose future is really in doubt? They will be banned.