I'm not sure that this is a fair fear in the case of Bitcoin. I mean it is obviously possible, but bitcoin is basically a global democracy, and if the admins make some stupid changes, like increasing the number of coins mined per block, then major miners can ignore that change and continue on the old blockchain.
The press are always very keen to point out that bitcoin is ruled by a few people, but they couldn't really be more wrong. Granted an active dev team was a good thing to start with, but now is too late to make major changes, so I expect, block size aside, no hard forks in the near future.