Remember when KDE4 was released?
The developers opened it up to any and all suggestions and because of the power and rapid ease of development using the Qt API they went through a whole series of experiments interfaces and appliations. One volunteer, who was in grad school at the time, offered a web page to explain the new apps and features. He was crucified by those who abhorred change. Their attacks got personal. Some of the attacks were drive-by shootings by people masquerading as KDE users. He quit in disgust and devoted that time he used to his wife and graduate studies.
I suspect that the same thing will happen with this venture. My recommendation is to continue to polish the KDE UI and remove conflicting dialogs, fix the things that don't work properly, or don't work. Like this problems mentioned in this YouTube video: http://youtu.be/N7-fZJaJUv8
Above all DO NOT hide the current power and flexibility of KDE, i.e., "dumb it down", under a plethora of "useful" or "helpful" buttons, menus or dialogs. Windows does that. So does Unity. If I wanted that kind of interface I can use one of them. We saw what happened to GNOME2 when it was dumbed down to make it "easier to use". Is it possible to make a GUI "idiot proof"? Idiots are extremely ingenious, but simple interfaces are, well, simple. As in not powerful.
KDE dev team: IF you insist on shooting yourself in the foot with this scheme would you make it so that the user, during the installation process, could select the type of interface the users wants, say a mutually exclusive check box offering either the "Experienced User GUI" or "Novice Use Interfacer"? Either that, or make it easy for distro developers to select the kind of user GUI that want to default to and make the alternate option a Muon choice.