Per [[w:Wikipedia:Village_pump_%28proposals%29#Wikipedia_logo_improvement]]. This is a non-controversial change.
The German Wikipedia logo seems to have several improvements over the English one. Most notable is the better transition into its transparent background. The German logo shows now unsightly white jagged border around the globe.
I'm not sure offhand whether or not the globe image and the banner text ("Wikipedia, The Free Encyclopedia") are separate image files. If they are, this change should be rather simple. If they are both part of the same image, this change will require creating a new image, which I can do myself if need be. I may just need someone to direct me to the German and English source images.
Thanks for your attention to this.