Unity Technologies presents a sneak peek at the forthcoming features in Unity 5. Unity 5, The next generation software is full of new features that will allow developers to create high-end graphics and advanced audio at a breakneck speed. The new Unity GUI will be in 4.6, btw.
Features:-
High-end shaders for all
Cross-platform real-time Global Illumination
A revolution in game audio
WebGL
64-bit Unity editor