Don't know and don't care since it'll not be happening anytime soon. The Fed sees QE as a tool to be used when it can't push interest rates any lower, which is a view I agree with in general. About the only way I could see QE being used with interest rates above zero would be as a targeted easing for a sector of the economy that was doing much worse than the rest of the economy.
Export manufacturing?
I guess in an abstract way one could view the Ex-Im Bank as a form of targeted QE, but it wasn't set up by the Fed and it's permanent rather than temporary.