I didn’t know that Wayland would not be the default. Glad to know that. I just wrote about Wayland may not be default in the U+1 forums, before reading your post here. I deduced that you can’t give the enterprise users an LTS distro, where they have to do workarounds. Some crucial apps don’t work in Wayland, and you can’t ask people not to use Nvidia.
To make Unity an official flavour you have to make a working iso, publish it somewhere and prove that there are people, who’d use it happily. That’s how Ubuntu-Gnome came about, Ubuntu-Budgie came about, and all the other derivatives. There is one plus for Unity, as it was the default Ubuntu distro for so long, and 16.04 is still there.