the governments know bitcoin is promising so they are coming for it. I think the governments will always will in that we are governed by them
^ That is not easy as that, government institution who is always wanted to regulate all form of currencies under their control and knowing that BTC is a decentralized nature that no one will have control. As long as BTC is not regulated yet, the government will not able to adopt this currency, they always afraid of the threat caused by BTC. Banks are under-regulated by the government, I don't know if they will use this.
Nevertheless, probably the time will come that the government implement regulations through the users of BTC but not directly to the BTC itself.