Manga UK has released Panda Kopanda recently, under the Western title, Panda Go Panda. The impressive cover design was first seen on the Australian release, and it also happens to be my favorite (certainly much better than the Pioneer disc that was released here in the US).
I haven't had time to contact Manga US to see if they plan on releasing the DVD here Stateside, but somebody should. They are the most likely candidate now that Pioneer's license has expired. Hopefully, the Panda films will remain uncut; the US version chopped out the opening sequence, replacing them with tepid still shots, ala Saturday morning cartoons. And let us not forget Manga US' similar mangling of the title sequence for Castle of Cagliostro (read about it here and here). Let's hope Panda Kopanda fares better.