As I understand it, what the Connected Home over IP (CHIP) alliance intend to do is to take parts of Apple HomeKit, Google Weave and DotDot (from Zigbee) and create a single unified royalty-free application layer protocol which will run over Wi-Fi, Bluetooth and Thread networks using using IPv6.
https://discourse.mozilla.org/t/chip-iot-standard-announcement-mozilla-iot-comments/50718/2
https://www.howtogeek.com/452694/what-is-project-connected-home-over-ip-for-smart-homes/