I have found this for those who want to download the official M9 wallpapers:
http://downloads.giga.de/android/htc-one-m9-wallpaper.zip
http://downloads.giga.de/android/htc-one-m9-wallpaper.zip
I have found this for those who want to download the official M9 wallpapers:
http://downloads.giga.de/android/htc-one-m9-wallpaper.zip