Big/medium banks are never going to use Ripple, theyre only trying it out and will drop it then make their own technology (not de-centralized!)
Blockchain will change how we send money, but not through banks. Theyre completely against de-centralized control of financial system. We need blockchain solutions like Kora (
https://bitcointalk.org/index.php?topic=2876521.0) that are person to person and small business to small business
considering about Ripple the currency will disappear in the market people will not try to make it stronger because there are lots of problems are available here more than this so if the people want to rice again it will take you lots of time.