What would OP think about me if I give you the answer to all of that and tell him they will definitely happen? I am sure he will imagine I am a soothsayer. How can we ever know what will happen to cryptocurrency in the next few weeks, let alone year.
All the questions you have asked, is something no one can know, but if we are just to be realistic, I am sure, regulation should be on board, banning would have even been a thing of the past and the few ones who have banned now may be trying to recover.
Controlled by the government depends exactly based on the control you are referring to, if you mean regulation, yes activities will be regulated, but if you are talking about coins like bitcoin that is decentralized becoming a centralized currency, then that can only happen if the protocol is changed.