Not quite. It will be like Mantle. Mantle caused MS to rapidly announce DX12. So it's the exact same direction where everyone else is going. While DX is more

Not quite. It will be like Mantle. Mantle caused MS to rapidly announce DX12. So it's the exact same direction where everyone else is going. While DX is more pleasurable to use than OpenGL (I personally am purely OpenGL dev, yet I acknowledge it's weaknesses) it has similar limitations. Very limited threading model and massive CPU overhead in drawcalls. The future of graphics api's is going to be mantle style command buffer generation from multiple threads and then sending those buffers to the GPU.