It has just got more interesting with DTS making there anouncement regarding there version of Dolby Atmos and with the upcoming 4K UHD bluray format coming before Christmas this year! The specs should be finalized Spring of this year and it will be interesting to see all the new product with Dolby Atmos and DTS X decoding and what new models will have HDCP 2.2 which should be most of the models by summer time or fall of 2015 IMHO.
http://www.dts.com/corporate/press-releases/2014/12/dtsx---raising-the-bar-in-immersive-sound.aspx
http://www.blu-ray.com/news/?id=14923
THE EXPENDABLES 2’ IS FIRST BLU-RAY™ TITLE TO FEATURE A DTS NEO:X™ OPTIMIZED SOUNDTRACK
http://www.dts.com/corporate/press-releases/2012/11/the-expendables-2-first-blu-ray-to-feature-dts-neo-x.aspx
http://www.dts.com/corporate/press-releases/2014/12/dtsx---raising-the-bar-in-immersive-sound.aspx
http://www.blu-ray.com/news/?id=14923
THE EXPENDABLES 2’ IS FIRST BLU-RAY™ TITLE TO FEATURE A DTS NEO:X™ OPTIMIZED SOUNDTRACK
http://www.dts.com/corporate/press-releases/2012/11/the-expendables-2-first-blu-ray-to-feature-dts-neo-x.aspx