Yes, I think that bitcoin have a future.
Bitcoin are not used legally in most of the countries. I want your explanation that if it is not approved legally, then how Bitcoin have a future?
You know, although bitcoin is not approve to use legally as a digital currency in our country, maybe in the future there will be countries that adopted bitcoin even it has anonimity of transactions. There are some country now are practicing bitcoin and study about it. The world is round so we are free to dream and that dream has a possibility to happen because many good news on bitcoin from the start until now.