The first 3 things you list can happen to bitcoin since bitcoin is just another currency.
The idea that it's intrinsically cheaper doesn't hold water compared to any other currency. Just because some transactions cost money on existing currencies doesn't preclude the exact same thing happening to bitcoin. Again, just another currency.
The idea that it's somehow free of national regulation is patently false. The currency may be "virtual" but so are all other currencies, I can send you money without mailing you paper. But the point is that the holders of the currency exist in the real world, not as entities in cyberspace, and those bitcoin holders and dealers can be regulated just like other currencies, unless they want to go to jail.