This is exactly why I need to make sure a release is indeed possible. There's no point of doing a petition if there is no possible way it's going to happen. If we make a petition, we need to make it clear that a release is indeed possible.
I've made a bit of research myself and, like you, I didn't find anything 100% conclusive.
As you know, the release of MITM DVDs is impossible due to the music licensing for the DVD release, which was not negociated when the episodes first aired. Fine. But then, what can explain that Fabulous Films, which appears to be a small British company, is successfully releasing the entire series with the original soundtrack?
It would seem that the law regarding music copyright is different in the UK. That's the only valid explanation I can come up with.
This Wikipedia article states clearly that
in the UK and elsewhere, with the exception of the US, there is apparently no legal prohibition to the combination of audio and visual images and no explicit statutory right for the collection of synch royalties.However, there is no further information on the synchronization royalties legislation in France or in the UK, for that matter.
What would be useful is to find out if the legislation in France is similar to the one in the UK, which would mean that a DVD release with the original soundtrack is indeed possible. Of course, I guess that the studio would need to pay for the rights of the French dubbing and possibly pay for the creation of subtitles as well. But on paper, if the legislation is similar, it would be possible.
I would add that indeed, the release of the first series was planned in 2005 in Germany and was cancelled, but the release of the whole series was announced in France in 2009 and never happened as well.