Mantle and DirectX 12

I was just curious thinking about the soon to be introduced low level apis namely, AMD Mantle and Directx 12. Will these aid the ps3 emulation process in any way or enable the devs to start making a ps4 or xbone emulator, as both 'next-gen' consoles have an x86 architecture and MS has already show forza 5 running on a pc at 60 fps on dx 12 (not going to realease it on pc, though).

Thanks in advance