Decentralized social media platforms, marketplaces, news websites, fintech services. We're at the beginning of a massive overhaul!
Banks will certainly deal with this "problem". They will adopt blockchain to their own needs using the existing cryptocurrency experiences. After all, bankers observe what is happening in the world of finance and technologies used there and react to emerging threats or opportunities that they may use for their own purposes.
Actually, it's already happening.. Look who's in second place on Coinmarketcap.. Now it is XRP.
Ripple is a tool for banks and if it is not yet the final tool that banks will use for transactions, it is definitely an "experiment" based on which they learn how to use Blockchain for their own purposes.