I did not expect that :https://phoronix.com/scan.php?page=news_item&px=Ubuntu-Dropping-Unity
Even though i did not use Unity in a long time, it's still surprising they dropped Unity 8 after working on it for more than 5 years.
Ultimately, they finally realized Convergence was dead duck. (Microsoft learned it the hard way)
They also announced that Ubuntu 18.04 LTS will use Gnome (god no), rather than Unity 8 or even Unity 7.
Presumably, this would also mean that they give up on Mir.
I fail to see Gnome supporting Mir, given that it provides no real advantages compared to Wayland and they have limited resources.
So much efforts for nothing.
That's why we need a basic income guys : so that nobody works on useless s***.