This filing at the FCC suggests that Garmin have a high lumen bike light coming out soon. Not very exciting I suppose.
One piece of info that raised my interest level to ‘tepid’ was the apparent inclusion of Bluetooth connectivity. There’s a Bluetooth icon if you dig deep enough but otherwise it is officially listed as a “High lumen light, ANT+ Transmitter”. Other than battery status what would it transmit over ANT+? RADAR?