Sure Crypto backed by a particular company might not happen, but I don’t see BTC and similar P2P blockchain currencies going anywhere. It’s about as easy to stop as digital piracy, which is to say in other words physically impossible to regulate.
The government and card networks might do something similar. They could get SWIFT in on it, too, since they cooperate with governments and mostly profit from traditional banks.
Cryptocurrency ecosystem is already out of the regulations and mostly a black market