According to several sources, Apple has acquired FaceShift, a Swiss company specialized in the real-time facial movement capture. Neither Apple nor FaceShift have confirmed the acquisition, but the company's main software, FaceShift Studio, was recently discontinued without making much noise. Another company that acquired Apple and gradually disappeared was Camel Audio, which gradually disappeared until Tim Cook's people made the acquisition public.
You can see the most important FaceShift software in the following video. With FaceShift Studio, in this case, an actor can speak and gesture at the same time as an animation character does, which gives much more precision and reality to the dubbing than having to talk about the animation already created. And all this he achieves without using any type of sensor (Although in the video you see a moment with dots, they are part of the software) As it says in the video, the characters are «living, breathing, moving and characterizing in real time. That's just another dimension«.
It is unknown how Apple will use the technology developed by FaceShift. Or more than the "how", the "when". It is unlikely that we will see something similar on the Apple TV that will be presented next Wednesday, but it is possible that we will see it on the Apple TVs of the future. It seems clear that Tim Cook and company have decided to fully enter the world of video games and the Apple TV App Store along with the new Twitter account that those from Cupertino have launched this week are an example of this. I think it is only a matter of time before Apple TV is able to follow the movements of our body and even our face.