TechCrunch says that we will indeed see the technology, but it will work in a slightly different way, it won't track you. Instead, it will track the controller, which will house the accelerometer and gyroscope. New Apple TV should thus offer a similar control method to that offered by Nintendo Wii or PS Move. The controller will also include improvements such as a microphone due Siri and a touchpad that will be used alongside the physical buttons. A new one Apple TV so we will probably control not only with buttons, but also with movement and voice. Siri will play a very important role here. However, the how will be even more important Apple will launch his own TV service, where Jimmy Iovine was heard saying that television would need a system similar to his Apple Music. This service will only be introduced with time.
*Source: TechCrunch
Well, I'm curious. Here's a comparison of the competition. Nvidea Shield is about to go on sale in Europe, perhaps the most powerful of the powerful so far.
http://shield.nvidia.com/android-tv/shield-androidtv-vs-appletv-vs-roku-vs-firetv
It's probably not about performance, is it?