Yes Bitcoin is here to stay and exists as the perfect system for One World Government Control. The accounts can all be seized and then doled out in exchange for some sort of compliance.
As the old timers say "be careful what you wish for"........

All we can do is watch the progression closely and insist on the freedom of its use by devising a completely unique electronic or naturally magnetic pipeline (not the internet) or refuse compliance altogether.
I foresee some sort of "magic wand" (for lack of a better term) where the user is identified by their own unique genetic magnetic field variance.
You could "LOSE" your wand and it would be rendered useless in the possession of anyone else (therefore replaceable). Transmission of payment data is through a frequency within the Earth's magnetic field spectrum triggered and identified by both party's mutual code generation (the unique combination of the two "magic wands".)
In conclusion: BTW I just thought of this while I was writing this so don't forget you heard it here first.
