directx interop ? maybe via some kind of extension?

Khronos provides interop with opengl, but in windows main graphics api is directx(9,10,11). If it is not going to be supported, the I doubt opencl is of any use for games unfortunately. Are there any plans making interop with directx available ?

This is technically possible, but I don’t think it’s on the roadmap currently.

If you’re using DirectX 10/11, I would recommend using compute shaders instead.