Add new language in android without republishing application

I know how to develop a multilingual application on Android. The following link explains how to do this.

http://developer.android.com/guide/topics/resources/localization.html

Suppose that I market my application in three different languages, developed with the best practices described in the link above.

If I want to add a new language, I must reissue the new version. Is there a good way to avoid republishing the application if I add more languages?

It is important that the application detects the correct language according to the language of the smartphone.