I've had a few CA products over the years, previously running some Mission M772 speakers off a CA stereo amp, and my current DacMagic Plus has driven some M-Audio BX8 and now some Presonus E5 monitors.
I picked up a tiny little DacMagic XS a couple of years ago and the quality side has definitely dropped since CA's heyday. It's still a fine amp but having used more expensive and higher-end DACs I'm not going to give it five stars. The AQ Dragonfly black is barely half the price and half the size yet it sounds just as good to me, if not better. The FiiO E10K for a similar price is a classic that does everything the DacMagic XS does with better drivers and better sound, albeit in a larger form factor. Given its age and popularity you can usually find it cheap, too.
So yeah, Cambridge Audio need to compete in the current market and not just live off their old reputation. They haven't made a bad product yet (that I'm aware of) but they run the risk of being buried in a sea of competitive alternatives. Like you said, wireless headphones are a saturated market with ruthless competition - coming in at even $100 they need to distinguish themselves rather than just be another "ok" option.