Banks to some extent are getting more concerned about staying in the game and have started to consider cryptocurrencies as a threat and are taking necessary steps to prevent their eradication. One of these steps is what these Asian banks are going to implement so as to keep the faith of the common people in banks as it used to be before cryptocurrencies were introduced but still, these banks won't be providing complete control to the people like all other cryptocurrencies do and this would be a negative point for this step to fail.

There's no need to create a separated coin for each bank in order to be in complete control of it. If this happens, bank's won't accept each other's coins, even if they're in the same country and using the same fiat currency.
Banks won't create a coin but will develop a blockchain based solution. People won't be interested in bank coins, they only want quick and affordable transactions. They don't mind how banks would solve this, as long as the service of the banks' is cheap and reliable. Banks can make some advantage for themselves using the blockchain term in their advertisements.