After so many years, Ubuntu has not really broken into the PC market (with few exceptions).
One opportunity might be in the low-end cheap fanless PCs. A TV Box with 2 GB RAM can be had for about 30 to $40, including delivery, and would make a wonderful FANLESS PC. The cheapest Intel mini PCs start at about $120.
I am a long-time Lubuntu user and absolutely love it. It runs well on 2 GB RAM and will manage even on 1 GB RAM. It uses only 138 MB of RAM at idle. Lubuntu is Ubuntu + LXDE.
Lubuntu has a version for the Raspberry Pi. However, even the Raspberry Pi comes out twice as expensive as a Tv Box once you add all the extras and postage. And, it is not for a general audience.
It could even be a new Ubuntu flavor.
Lubuntu already has a certain expertise with arm processors from developing its Raspberry Pi version.
Armbian is a system that could be installed on a TV box. However, as a private issue I would not trust it for doing my banking and other stuff. Only an official distro would do. Armbian is also incredibly difficult to install and is full of bugs.
http://www.geekbox.tv/ is also doing something of what I am talking about. Again, it is not an official distro.
By uniting their efforts to developing an official distro: they would not only save time but could make a lot of money. Anyone else could also do it.
I personally have a rooted TX3 mini TV box that has an amlogic S905X processor. I very much hope that a Ubuntu version could be developed for it. Other common processor for TV boxes are the s905w and s912. There are also some RK processors.
This is related to: https://ubuntuforums.org/showthread.php?t=2396324&p=13786925#post13786925
People a the forum suggested I post it here.
Thank you all.