FUD Zilla reports Intel 2013 Haswell will support DirectX 11.1 and OpenCL 1.2. Additionally, it will also offer support for the 4K resolution (4096 x 3072).
Microsoft has announced that the 11.1 feature set includes shader tracing and compiler enhancements, Direct3D device sharing, check support of new Direct3D 11.1 features and formats, larger constant buffers than a shader can access, use logical operations in a render target, process video resources with shaders, extended support for shared Texture2D resources and other goodies. You can check out the full feature set here.
The list is long and Intel is committed to support all the new features with the next generation 2013 notebook and desktop parts and Haswell based platforms.