Even not Blockchain technology. As it is too expensive, too much hunger for ressources.
Most likely, online banking will be revamped, allowing micro transactions as well.
The www definitely is in dire need for micro payment, as it gives some control, in order to raise quality over quantity regarding user created content.
BTC has been a nice draft, a glance into cryptography, but not more. Cryptography itself is indispensable for any online transaction.