How is an audio interface going to work with the AX8 though ?? You'd have to unplug whatever your running the AX8 into, then plug it into an interface, and then that interface is going to have to be plugged into some monitors.
Furthermore, is the interface going to have mic pre's on it or is it going to be just a line level input device ??? If someone needs to then go buy an additonal mic preamp, or, a different interface that does have good mic preamps, that hardware would also be able to use the line level AX8 inputs, making the need for a Fractal interface redundant.
Furthermore, you can now pick up an Axe II for less money than an AX8 plus a hypothetical Fractal interface cost, and the II (or III) can allow for wet and dry recording, easy reamping etc, because the II is an interface AND a modeler.
The AX8 due to its hardware design can't do those things short or running an audio output out of the DAW/interface, at instrument level, and then plugging back into the AX8. an II, XL, III all make recording much, much easier.
The AX8 simply isn't designed to be a studio tool, and regardless of who makes the interface, its not going to become on.
So essentially you've got anyone with a II or III who doesn't need one, AX8 owners won't really gain anything from one over what any other interface can do, and surely nearly anyone with the slightest interest in recording to their PC owns an interface of some sort.
Seems the market is going to be only people who don't already own an interface, or a rack mount Fractal product, and have basic needs of just recording processed audio, OR, those who are big enough Fractal fans to buy something, however limited, simply because it has a Fractal logo.
What is Fractal really going to bring to the party that Apogee, Focusrite, Presonus etc haven't already ?