I already added my GSoc proposal to the ideas page and subscribed to
email@example.com, now is wait and see if the proposal will be accepted or not. Meanwhile I already passed some material for Arthur to study and pushed a commit to add a #ifdef to show a QML view instead of the current popup.
Just to make it clear: the plasmoid is the system tray icon, what you see when clicking on the system tray icon is just the plasmoid's popup. What my #ifdef does is make the plasmoid (the system tray icon) show a QML view instead of the current QGraphisWidget popup. The current QML view just shows my name :-)