I'll just leave this here... http://www.anandtech.com/show/8363/khronos-announces-next-generation-opengl-initiative
In short, Khronos are creating a new next generation graphics library which will allow explicit control over CPU and GPU workloads, similar to that in Mantle, D3D12, Metal, etc. Some of the key features are:
- Ground-up redesign of the API
- Intermediate language for shaders
- Explicit CPU/GPU control
- Unified graphics library for desktop and mobile
- Support and design contributions from some major game companies - Valve, Epic, Blizzard, EA etc