The replacement for the WF-1000XM3 is edging closer to release. Sony has finally alluded to when it will be announcing the WF-1000XM4, but a Slovakian retailer has already revealed how much the TWS earbuds will cost in Europe.
https://www.notebookcheck.net/Sony-WF-1000XM4-release-date-set-as-European-retailer-pricing-leaks.542363.0.html