Thank you for using Sitefinity.
As a limitation of MVC the only way possible would be to add an entry to the routes table for every language you want to support? All of the localized routes could redirect to the route in the language of your choice. Check out these related questions:
Multi-lingual websites with ASP.NET MVC
How should I implement localization with ASP.NET MVC routes?
Let me know if you have any questions.
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