No one can categorically state for now the exact extent of the influence (even the most seasoned of the immigration lawyers). Everyone expects some sort of influence on the PNP but still everyone is saying wait until Jan 2015 comes... then we shall know.
But my thinking is that the existing programs will be impacted NOT is a beneficial way to the candidates already in the program. They will be sacrificed in some way just to loud how super wonderful this new program is. Don't forget that the budget for introducing this new program by CIC has to be justified. So yes, expect some impact on the existing PNP.