New Apple TV 5 coming
They are now fully committed to the device. Apple TV 5 is coming this October that will feature faster CPU for better video games, 4k/HDR, and bluetooth 4.2 for connected home hub. Most don't realize that the current apple TV only supports bluetooth 4.0 which is not as good for connected home. The next update of TvOs will feature Siri & Homekit SDK support to allow partners to create Echo like accessories. Apple needs to compete with Amazon, Google, Roku, etc. who are doing annual releases and lower the Apple 4 price to make it more accessible. As far as 2017, the Apple 6 will feature new remote design with TouchID( home shopping) and sensors.