Coincidence or anticipation? One wonders.
Kubuntu was an official project of Canonical until it split off and gained sponsorship by a company known as Blue Systems. Riddell was for some time an employee of Canonical but left the company some months ago.
His announcement seems eerily prescient.
Riddell's announcement was very definitive. He contrasted the style of development at Kubuntu with that at Canonical: "Here at Kubuntu we still want to work as part of the community development, taking the fine software from KDE and other upstreams and putting it on computers worldwide."
And he went on: "So when Ubuntu Desktop gets switched to Mir we won't be following. We'll be staying with X on the images for our 13.10 release now in development and the 14.04LTS release next year. After that we hope to switch to Wayland which is what KDE and every other Linux distro hopes to do."
The upstream KDE project has indicated that it will not be using Mir at all; rather it will be switching to Wayland for its display server. It thus becomes difficult for a downstream project like Kubuntu to cater to another display server. Kubuntu has far less manpower at its command than Ubuntu itself which is funded by Canonical.
You'd have to wonder - will Mark Shuttleworth, the head of Canonical, consider revoking the use of the name of Kubuntu, given its similarity to Ubuntu, if it were not using the same components and, in fact, using a display server that Shuttleworth has jettisoned from his plans?