Just a link of interest, but... Bluetooth specifications and protocols have been evolving steadily over the last decade. You may have noticed that most smartphones now quote Bluetooth v4.x in their specs? And with each evolution come new ideas and extensions, whether for low power use or, as here, for longer range and higher speed. The focus does seem to be on appliances and the Internet of Things, mind you, rather than smartphones, but I'd still bet on your 2016 or 2017 smartphone boasting "Bluetooth 5.x"...

From the announcement:

Today the Bluetooth Special Interest Group (SIG) is previewing highlights from its 2016 technology roadmap. Planned enhancements for the technology are focused squarely on increasing its Internet of Things (IoT) functionality. Key updates include longer range, higher speeds and mesh networking. The host of Bluetooth advancements coming in 2016 will further energize fast-growing industries such as smart home, industrial automation, location-based services and smart infrastructure.

...Announced updates will provide a variety of benefits for the growing number of IoT applications. For example, the range of Bluetooth Smart, set to increase up to 4x, will transform smart home and infrastructure applications, and will deliver an extended, more robust connection for full-home or outdoor use cases. A 100% increase in speed, without increasing energy consumption, will enable faster data transfers in critical applications, such as medical devices, increasing responsiveness and lowering latency. And mesh networking will enable Bluetooth devices to connect together in networks that can cover an entire building or home, opening up home and industrial automation applications. 

“The Bluetooth technology roadmap is a powerful expression of our mission to continue as a catalyst for industry innovation,” said Mark Powell, executive director, Bluetooth SIG. “Bluetooth has been adopted by countless developers and manufacturers as their connectivity solution of choice for the IoT. The new functionality we will soon be adding will further solidify Bluetooth as the backbone of IoT technology.”

Worth noting anyway, Bluetooth has come a long way from the days when it was a low speed object transfer protocol for the very first smartphones in the early 2000s. I wouldn't hold out much hope of getting the longer range in smartphones, since that's dependent on physics, but 'faster' is certainly achieveable, in terms of the amount of processing power available in both phones and accessories. Plus, most importantly of all, the more mature Bluetooth becomes, the more stable our connections, to accessories and laptops, are.