This year at GDC Vicon will be demonstrating its new Shōgun 1.2 MoCap platform. At its core it's an optical MoCap solution (which is quite different from inertial ones like Perception Neuron and is commonly used in professional production).
Vicon's Shogun and Shōgun Live are well known MoCap solutions used by Hollywood filmmakers and AAA-game devs worldwide.
This time the company comes to GDC with a treat: they will be coupling Shōgun with VR headsets to immerse GDC visitors into interactive virtual worlds in what they are calling a "VR multiplayer escape room".
What's even cooler is as far as I can tell, all MoCap data will be directly streamed into Unreal Engine 4. I believe this will make the engine even more popular among game devs, especially those interested in VR applications (sorry, Unity).
Anyway, if this is something you might be interested in, you can read more about the event at Vicon's official website.