Here’s the rig in UE4 to see how it looks in engine. I used my NVIDIA hairworks pipeline to add dynamic hair to the character and did some rough animation.
This facial rig has more than 100 joints and has a great amount of possibilities of ROM. I finished this rig in Maya 2016, and the whole process took me almost one week.
Here is a picture to show the controllers and facial joints locators.
Here are two pictures which include some range of motions based on this rig: