That's not really possible to keep track of the users as well to make the people stop the usage of bitcoin. These days governments too have the plans of making use of bitcoin, than abolishing it. Because people tend to use it one or the other way, so that it's not possible to abolish it. Expect more countries to get into bitcoin usage and make it grow higher same as that happened when Japan entered the community.
Nothing will happen to bitcoin because the government already know about it and it also know the users of bitcoin here so I think they allow bitcoin to help our economy and reduces unemployment from here and thats why day by day its users are going to increase in my country and it work in any part of my country as well.