So DX12 will need new hardware after all (for new feature)

DirectX 12 will indeed make lower-level abstraction available (but not mandatory—there will be backward-compatibility with DX11) on existing hardware. However, Tamasi explained that DirectX 12 will introduce a set of new features in addition to the lower-level abstraction, and those features will require new hardware. In his words, Microsoft "only teased" at some of those additions this week, and a "whole bunch more" are coming.

http://techreport.com/news/26210/directx-12-will-also-add-new-features-for-next-gen-gpus
 
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well hopefully with this we DX11 cards user will not get abandon when DX12 cards comes out. just look what happen to DX10. when DX11 cards arrive most game dev only make their game to run in DX11 or DX9 leaving user with DX10 capable card cannot fully utilize the capabilities of their card
well hopefully with this we DX11 cards user will not get abandon when DX12 cards comes out. just look what happen to DX10. when DX11 cards arrive most game dev only make their game to run in DX11 or DX9 leaving user with DX10 capable card cannot fully utilize the capabilities of their card
 
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