The people behind the Bluetooth spec are working out the fine details of what the next version of Bluetooth should be able to do (connect to things on the 1st attempt not the 31st bloody try might be a good start), and have revealed that the spec sheet will be made public on June 16. And it's officially to be called Bluetooth 5.
Writing in thrilling Bluetooth page-turner Blue News, Bluetooth Special Interest Group extreme connectivity field ops commander Mark Powell said: "I’m pleased to tell you that on 16 June we will formally announce that the next version of Bluetooth will be marketed as 'Bluetooth 5'," which is probably exactly what people were expecting. Although Bluetooth 4S might've been a good industry joke. Never mind.
He explained some of the new headline features in layman's terms, adding that the updated connection protocol will: "...double the range and quadruple the speed of low energy Bluetooth transmissions," also saying that Bluetooth 5 has been designed to "...provide significant new functionality for connectionless services like location-relevant information and navigation." [Blue News via GSM Arena, The Verge]