It is said the blockchain technology is quite convenient and fits perfectly in the world of finance. So I'd say there's a good chance one day our traditional money will be replaced by some other form of money based on blockchain or something that will have evolved from it by then.
All we can do now is speculation, though, because it's not really up to us to decide on the future. Many governments are hesitant to accept it, so I wouldn't be too positive to expect any major financial revolution to happen very soon.