Multilingual strategy as configuration?

There are multiple ways of representing multi-lingual content, such as sub folder or language extension. I am wondering whether it could be of interest to have a hint in the configuration file to indicate the method preferred.

The idea here is to help tools know which method to use when creating new content. For example when creating a new page from the command line it would use this to create all the empty supported languages content variations (as specified in config), in the right format and locations.