There can’t be something like a final blow in crypto currencies however we might see some huge dips which we haven’t witnessed till now and the larger effect could be seen if any fud comes from USA.even if the people’s volume from USA is lesser,it still effects the market with huge difference since it represents global economic and financial stats.one thing should be remembered that no new technology or a revolution can be stopped or banned,instead few regulators comes in.so stop using terms like ban in this field.