Coming to the Unity engine (or at least they are working on it)
Welcome to Project: Gorgon!
Project: Gorgon is a 3D fantasy MMORPG (massively-multiplayer online role-playing game) that features an immersive experience that allows the player to forge their own path through exploration and discovery. We won't be guiding you through a world on rails, and as a result there are many hidden secrets awaiting discovery. Project: Gorgon also features an ambitious skill based leveling system that bucks the current trend of pre-determined classes, thus allowing the player to combine skills in order to create a truly unique playing experience.
The Project: Gorgon development team is led by industry veteran Eric Heimburg. Eric has over a decade of experience working as a Senior and Lead Engineer, Developer, Designer and Producer on successful games such as Asheron’s Call 1 and 2, Star Trek Online and other successful Massively Multiplayer Online Games.
Okay, a little more explanation than just a link. Both Microsoft and Nvidia have code that takes advantage of the much more powerful GPUs we have now to provide the ability to do real-time ray tracing. Ray tracing is a technique that builds the scene based on the light sources and tracing where the rays extending from the light sources would strike then reflect towards the viewer. It can result in extremely realistic imagery. However, it is so compute intensive that in the past it would often take hours to render a single frame. The developments by Microsoft and Nvidia would allow incorporation of elements of ray tracing in applications/games that could operate in real-time. It could make the water in games actually reflect what you would expect them to, same with window glass, shiny metal surfaces and mirrors.