The latest release of Black Lab Linux, an Ubuntu 16.04-based distribution, adds a Unity desktop option. You will not find Unity offered by any other major — or nearly any minor — Linux distributor outside of Ubuntu. Black Lab Linux 8.0, the consumer version of PC/OpenSystems’ flagship distro, also updates several other prominent desktop options. Black Lab Linux is a general purpose community distribution for home users and SMBs. Black Lab Enterprise Linux, its commercial counterpart, targets businesses that want support services.
Seems even Ubuntu has given up on the Unity desktop.
http://news.softpedia.com/news/canonical-to-stop-developing-unity-8-ubuntu-18-04-lts-ships-with-gnome-desktop-514604.shtml
If you do love Unity it will be community maintained:
http://news.softpedia.com/news/ubuntu-touch-and-unity-8-are-not-dead-ubports-community-will-keep-them-alive-514620.shtml
I doubt people will be beating down the door for the Unity desktop. I have tried it and while it is pretty easy to get used to, it is not really a great desktop. Personally the Mate desktop makes a lot more sense to me.
Black Lab Linux 8.0 Is a Rare Treat
Posted by: Jack M. Germain March 9, 2017 02:40 PMThe latest release of Black Lab Linux, an Ubuntu 16.04-based distribution, adds a Unity desktop option. You will not find Unity offered by any other major — or nearly any minor — Linux distributor outside of Ubuntu. Black Lab Linux 8.0, the consumer version of PC/OpenSystems’ flagship distro, also updates several other prominent desktop options. Black Lab Linux is a general purpose community distribution for home users and SMBs. Black Lab Enterprise Linux, its commercial counterpart, targets businesses that want support services.
https://distrowatch.com/search.php?ostype=All&category=All&origin=All&basedon=All¬basedon=None&desktop=Unity&architecture=All&package=All&rolling=All&isosize=All&netinstall=All&language=All&status=Active#simple
About 8 other distros use UNITY DE.
http://news.softpedia.com/news/canonical-to-stop-developing-unity-8-ubuntu-18-04-lts-ships-with-gnome-desktop-514604.shtml
If you do love Unity it will be community maintained:
http://news.softpedia.com/news/ubuntu-touch-and-unity-8-are-not-dead-ubports-community-will-keep-them-alive-514620.shtml