I have edited this posting for some corrections and to provide additional informations .
A new communication protocol called Chip / Matter is on the way, comparable to mqtt, CoIoT or CoAP. The goal for this standard is, to achieve more compatibility in smarthomes. Therefore Matter has the ability to communicate via BT-lowenergy, Wifi, Ethernet, Thread and even DSL or docsis.
Like i mentioned before the intention for Matter was, that device from every manufacturer can communicate with each other. And nearly all the big manufacturers admitted to Matter. This project is open source and based on IPv6.
And what is Thread?
It seem, that Thread will be the new wireless standard that comes with Matter. Its mostly based on Zigbee, but without its compatibility issues. Because of that, older Zigbee products could might be upgraded to Thread via Firmwareupdates.
First devices with threadsupport are already on market. For example AppleHomePod, Google Nest, different Eve and Nanoleaf products.
Here are some links for more informations:
-official Thread webside
-official Matter website
-Chip/Matter on github
-Thread on github
-Thread firmware for TexasInstruments ZigbeeSticks like CC2652
-General infos about an openThread border router
-How to set up a border router
I hope of an integration soon. Please help vote.