A fan for the fans…
Bladeless towers (like the Dyson ones) to protect from small fingers getting hurt,
an easy access panel to be able to clean around the motor without needing to unscrew the whole thing (because dust and pet hair will end up around the motor),
connected via wifi for remote operation (or schedules),
on board controls and a remote so guests don’t need to have the device shared to them in order to operate it,
a built in heating coil (to be used like a space heater fan),
Interoperability with other home systems would likely be limited to the Wyze thermostat, but for people who don’t have a central AC, connecting the fan to the thermostat could have the thermostat cool off a house when the it detects too hot of temperature. (programmable in app … heat if temperature is < x, activate fan(s) if temperature > y)
Battery powered and connected will not go well together because a constant wifi signal will drain battery too fast.