Just had a reply on twitter from Sennheiser in regards to bringing their GSX series to consoles (probably means nothing):
Hi there,
so I talked to one of our Product Managers.
The thing is yes, we are working on it, but it's currently not a priority.
the problem is though that the PS4 does not allow 7.1 over USB (and it does not do 7.1 in general only 5.1) you would need an optical input to achieve that which makes things quiet a bit more complicated.
I hope this generally answers your question a bit more in detail.
Best,
Monika
The other thing is royalty fees (per device) to Sony and/or Microsoft, since they would both need drivers and consoles are locked systems. Optical could solve things like in the past, but then they would need an entirely new logic board in the GSX and pay Dolby or DTS a licensing fee (which may be less than M$ and Sony, I don’t know).