I have to second this request…I keep holding out doing anything in my bathrooms because I want more control than just a sensor. A combination motion/occupancy sensor with dimmer having connectivity would be a no brainer for me. Kids are always leaving bathroom lights on and it drives me bonkers. In such a small space, it would be a great thing to have the light automatically go off with no motion. I personally (corner case) have a couple “powder rooms” where you wouldn’t be able to hide from the sensor so false shutoffs would be rare (unless you sit on the throne and don’t move in which case - other problems???)
Having a dimmer would be key as well since in my master bath, I have a “water closet” with its own switch that is just the toilet. Would be amazing to have that thing turn on at 5% brightness at night.
All of this would be perfect with the added benefit of seeing if a kid left the light on for a manual on function (if I didn’t have it to auto off). So many possibilities but this has literally been on my list for ages, just haven’t found the right device for it.
Sign me up if you need guinea pigs 
Call this one…project stinky! LOL