Martin has already merged this preliminary work into master for what will eventually be part of the KDE 4.9 stack in six months more months. (KDE 4.8 is nearly ready for release and due out later this month.)
"So what’s next? I am currently with the progress quite satisfied with the work done so far on scripting and will now concentrate on two other areas first: getting my unmerged kickoff-qml and screenlocker branch into master. Both require still a little bit of work. After that scripting and QML get my number one priority again."
Read more on his blog