Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Current KDE svn already comes along with the first bits of the future task and system bar. While the current version is not functional yet it shows that we can soon expect news about that topic.
One of the big, still missing bits of KDE 4 is the kicker replacement. KDE 4 Beta 1 was still shipped with a broken kicker and the new system bar is expected any day now. And first bits are already visible (while of course not yet exciting because they are only bits in heavy development).
In my local KDE compiled from the current SVN version I saw today this after the boot: