Thanks for your answer. Though my concern is less about Aperture's typical few-month lag as if Apple is planning on doing it at all, with their lack of support for Aperture.
The OS does the raw conversion, and that's not going anywhere, and Aperture leverages it.
I'd expect that given Aperture is still supported on OS X Yosemite, that it will get support for this (and all major cameras from brands Apple typically supports) released over the next year or so, as long as Yosemite is the "current OS." After that, raw updates may be limited to the Photos app that's on the horizon.