I agree that this is a great idea. I use KDE Neon on many of my machines, but it's a subpar experience. People ask the same question on the webforums all the time: what is the best KDE distro? Having a flagship KDE distribution where KDE developers would be in full control is something that has been hurting the project for a while. One can think about Apple who is in control of its entire ecosystem all the way down to designing their own CPUs.