The KDE web team has been working on the new design since November last year at Stuttgart, where the KDE branding was also changed.Personally, I think the new website design is just brilliant. It is a big improvement over the old site - both in terms of looks and usability. In the old site, it could be a little hard to navigate and find stuffs. The new website has a toggle menu at the top right from where you can get to just about anywhere.
Screenshot of the new KDE.ORG websites is given below, but I suggest that you go to the actual site and check it out.