Thank you for the fast answer Juraj.
This is sadly not what I want, let me explain a Use-Case for my request.
A client has Kentico 12 MVC Page that has multiple languages. Now they have an Event where you can register. They want also to Print something and want to use a Short URL like www.mypage.com/event
This URL should lead to the correct culture version of the page like it has been on the old K11 pages.
Basically, i ask for one Single URL that redirects to the page, based on the current culture of the visitor.