What is the family bonus for the HOTM 2022?

There will actually 3 of them according to Staff’s announcement in Beta Lounge.
Frist build is expected on 7th or 8th of December.

Still no information on this with the v53 game update. So hopefully it will make it to beta first (so we can know about it) or it will come at the very end of December with the v54 game update.