In an interesting turn of events, Ryukishi07 of the doujin circle 07th Expansion has acknowledged and approved of Witch Hunt’s translation project for Umineko no Naku Koro ni via email, according to a post by one of the translators. This letter is now also available through Witch Hunt’s website.
Ryukishi07 mentioned in his email that he was quite surprised that even people outside of Japan can now play his game and was very moved by the passion translators put into translating such a long piece into English. In closing, he mentioned that he will warmly watch over this endeavour and hope that everyone will continue to enjoy Umineko no Naku Koro ni. This is very likely the first time a Japanese game producer has given official approval to a fan translation of a non-free game (although game creators have given kudos to a fan translation before) and hopefully this will encourage future collaborations.
Please note that (as pointed out in the comments to this article) this does not mean Witch Hunt’s project is the official English localisation or that Witch Hunt is in any way affiliated or related to 07th Expansion; it is merely a translation project which has received approval and support from the original creator.