There's no real magic to anything Astro and all the other gaming headset makers did last generation. They take Dolby 5.1 surround signal, apply patented Dolby Headphone (DH) processing to it.. and it outputs a simulated surround signal that makes regular 2-channel headphones sound like they are putting out true surround sound (more than 2 speakers). Headphone makers don't even have to use Dolby's patented DH tech to do this.. theres a few other companies that have made their own simulated surround sound, athough DH remains the most popular. I know Yamaha does.
So as long a device outputs Dolby 5.1 over an optical output, then in theory the DH processing in the Astro Mixamp will work on ANY device that outputs Dolby 5.1 surround sound. To test this you could try it with a standalone BR player, DVD player, etc. I'm not sure why they stressed "GAME AUDIO" in all caps, as but pretty much any Dolby 5.1 source material should work. MS also announced a couple of months ago that while they did change their voice chat connector to a proprietary port.. their will be an adapter available to provide a standard output. What all this means is that every headset, that used the optical port output on the 360 and voice chat output on the controller.. should indeed work with the upcoming XB1.
The PS4 announcement is actually a little more interesting. As the Mixamp does not use optical to recieve the Dolby 5.1 signal. It uses USB. But its good to hear that the USB method of sound delivery will continue to be supported. Its a shame that the XB1 doesnt support Dolby 5.1 over USB.. as its a much more robust cable, connector, has more bandwidth and also powers the Mixamp when connected. The Xbox requires a seperate cable to power the Mixamp
Now whats most interesting is that Astro is finally an official XB partner. Hopefully that means access to MS proprietary wireless signal. And perhaps the announcement of their first TRULY wireless headset for the Xbox platform. Bring on the A60 thats 100% wireless and does not need a voicechat cable or TX base!
I just hope Astro does away with the bad sound quality on the A50s... it was quite a disappointment to me. So boomy. The PLYR1 is better, and at a fraction of the cost. Irony being that Astro helped aid the SK side for the SLYR and PLYRs.