Bluetooth audio has always been the weak link, and this upgrade is the first one in a while that could change how your earbuds sound. I do love it when new standards are announced, ratified, and adopted. And when manufacturers start implementing them, consumers benefit.
The ability to transmit more data more quickly can bring many more solutions. For example, it will improve audio quality for wireless devices. In my living room, I had to hide satellite speaker wire throughout. Now I think surround sound systems may benefit dramatically from this new Bluetooth standard.
Higher-quality audio is one thing; faster Bluetooth data transmission is another. Instead of spending minutes updating your wireless devices via Bluetooth LE, you could potentially do it in seconds.