I am going to take this in reverse.
Can you take a feathered stopped engine unfeather the prop to fine pitch and bring it up to full rpm and turn back on the fuel or mags (which ever was off) I am thinking not.
So back to the original question which is will the prop in fine pitch be able to put enough torque back into the engine to overcome friction loss, compress the gases in the cylinders, and drive the supercharger, and still maintain rpm. I think we are talking a decaying situation as far a rpms go and manifold pressure would drop accordingly.
VFD