Can/will the Titan X be firmware updated to support x265 decoding and/or "HDR" output?

I’m assuming no, but just curious. Particularly as the 960 has the former and the HDMI 2.0 in the Titan X should theoretically support the latter.

Alternately, is the “hybrid” decoding available on the Titan X exposed through VDPAU at all, or is it only available on Windows?