Sony have just announced the new "WF-1000XM4 Wireless Noise Cancelling Headphones" interesting that Sony describe them as "Headphones" in the launch blurb.
I found this review on them, most reviews are just comparing specs against the XM3 or other ear buds.
https://arstechnica.com/gadgets/2021/06/sony-wf-1000xm4-noise-cancelling-earbuds-rival-airpods-pro/
I have the current wf-xm3's so couldn't resist ordering the new wf-xm4's
https://www.sony.co.uk/electronics/truly-wireless/wf-1000xm4
Currently they are on pre-order in the UK via the Where to Buy link in the web page. I have pre-ordered via the Sony Center link as they are offering a 3 year warranty if ordered before 31/07/2021. John Lewis normally offer 2 years warranty but are offering the standard Sony 1 year warranty.
When they arrive I will post a introduction into my experience with them vs wf-xm3.
If you want to be kept updated on this post, then click on the update post link wherever that is on here.