ok the trick is:
- change language to german in launcher
- close launcher
- edit UserSettings.txt to "en"
- open the game directly without launcher "C:\Program Files (x86)\Zenimax Online\The Elder Scrolls Online\game\client\eso64.exe"
edit: here is a quick video
https://www.youtube.com/watch?v=ATHg...ature=youtu.be