Regarding DPS losses (well, happens.. with 7.0 Level 100 is lowlevel, so most people won't care, but anyway):
HFC Trinkets have been nerfed.
Secondary Stats are lower - maybe to prevent overcapping stats, because multistrike is gone and they changed some stats on gear and well.. scaling.
What about Itemlevels? I remember discussions where it looked like HFC items would have the same itemlevel for the difficulty instead of the current system with different itemlevels.