From the big blue banners at the top of the page:
If it appears like your characters are missing after today's update, please visit this page (and don't worry, they're still there!) https://help.elderscrollsonline.com/app/answers/detail/a_id/36045
If you're having trouble finding EU server selection, read this: https://help.elderscrollsonline.com/app/answers/detail/a_id/36028/