1. Will bring faster and more market oriented competitors specially for countries with low government industry regulations.
2. Will merge banking and retail/service/online industries in some products.

Money serves three interrelated economic functions: it is a medium of exchange, a unit of account, and a store of value. There are many differences of opinion whether digital currencies would be able to stand up to these functions over time. The pro's are rapid global access and usage at high speed at low cost, however, it is threatened by volatility, scaleability, lack of ATM infrastructure and the 'dark' usage of money off the grid. My view is that it doesn't pose a current threat to normal retail banking, but it must be a big concern and revenue loss for the international banking payment system, SWIFT.

It does not look like digital currencies can be a threat to traditional banking system currently but if it were to cross the enormous hurdles it faces in terms of costs in manpower, system implementations, and government regulations it could manage to hit international banking systems and macroeconomic factors, many of which depends on comparison of economies through a common currency like the USD or Euro. 

Banks's profits will be impacted by this digital currency. Specifically, international tranfers will be come much easier and cheaper, a good for society.

Chinese givernment is craking down, I think not abright future ahead for crytocurrecies.

I am not sure, if such currencies will be accepted by the middel east banking and financial institutions any time soon..

Crptocurrencies will eat up the dinner of traditional banks. It is going to happen soon, not only in North Amerca but also across the globe inlcuding the banks in the middle east.

Digital currencies are a fad.

Digital currencies is another way to do money laundering ina big way.

Digital currencies are for rich folks to make them richer.