There is no way banks can issue cryptocurrency based coin to fight or replace Bitcoin. First and foremost, Banks operate through a centralized system and it will be difficult for a centralized coin  to fight a decentralized coin like Bitcoin. Also, Bitcoin has been in the financial ecosystem for about 10 years now and the banks think they can issue their own coin to kick Bitcoin off  just like that.  The banks and governments are just jokers. There  is no way they can stop the Bitcoin and cryptocurrency revolution from happening.