i think it already is centralized with the possibility of a decentralized out if that centralization becomes too obvious. bitcoin could use a genuine scare to reinforce what it should all be about.
For me its possible given the fact, day by day countries who accept Bitcoin as their way yo improve transactions were getting bigger and we can say that to maintain peace and orderliness in terms of community and blockchain technology will remain as it has to be, and I see that governments will require for this since we have to stop money fraud and anomalies.