gmmed: Is there something new about that issue?
I will ask Judas about it again and hopefully he will post here what went wrong.
Edit: Judas has checked this and here is what he told me:
"There was a 7 day period about 1-2 weeks ago where if you downloaded the Witcher 3 in your preferred language (in this German :) ) the English language portion of the game, which is available with ALL copies of The Witcher 3 was getting erroneously removed, This was fixed and that 2-3 GB update was basically the English version getting redownloaded to your installation"
I've also informed him about the problems some people do have with the update regarding the DLCs in he will check this as well.