Good luck forming a political force when there's some 50 million people worldwide. It will be a bigger failure than all those internet parties or piracy parties. Best you can hope is some Bitcoin lobbyism coming from big companies that now have a skin in the game. Even then it's a big question if they would be able to successfully resist all hostile regulations and how far they would be able to go in defending Bitcoin, or to be more precise their interests in Bitcoin, which are not always the same as community interests.
Not only that, political parties are based on ideologies on how the world should be, and while bitcoin may have been born out of a particular set of of ideals as well it cannot be more pragmatic than what it is, and if to this we add that the majority of the people that have joined this market during the last years know nothing about that ideology and will never care about it then it is a waste of time to try to do something like this.