All signs point toward Sony releasing the WH-1000XM6 later this month. To that end, a reliable leaker has revealed early pricing details for Sony's long-awaited WH-1000XM5 successors while also reiterating plans to offer the wireless over-ear headphones in three launch colours.https://www.notebookcheck.net/Sony-WH-1000XM6-Early-pricing-details-revealed-for-rumoured-wireless-over-ear-headphones.1008567.0.html
The Bluetooth SIG released the Bluetooth Core Specification version 6.0 over 9 months ago, but I'm guessing that Sony will will follow the Bluetooth 5.4 or blah 5.3 specs.