Bluetooth SIG and UWB work together
The Bluetooth Special Interest Group has tapped ultra-wideband (UWB) for high-speed communications inside of Bluetooth. Though nothing is final yet, the goal is to work towards an architecture that allows devices to take advantage of UWB data rates for scenarios that require high speed. Bluetooth will still be important to maintain backward compatibly with existing devices on the market and future products not requiring the higher data rate.
If ported to mobile phones, Bluetooth with UWB could see speeds of 100-200 mbps or about the same speed as WiFi. There is still much to be argued in the UWB spec, but this is a good first step to see UWB adopted into the mainstream.