According to one "world situation" commentator who claims to have "inside information," the PTB will stop QE with the full knowledge that it will destroy the current financial system. Their doing so is not imminent; but neither is it far in the future.
The current financial system will then be replaced by one of their own making; one which will make a worldwide "level playing field."
Such an event is a distinct possibility.
It dosen't change the investment strategy, however as the present currencies will be destroyed (as in nearly valueless) and tangibles may store wealth if that is the investor's goal.
P.