Polish audio?

[Teranator]

Are there any plans to add full audio in Polish for the Metro games because so many other languages are included but not Polish, and think it would be more atmospheric in something other than English

[Reinborn]

I don't think any language would be atmospheric other than Russian. I have to say Metro already comes in many localizations which is a great thing right there (even though I prefer English over my mother language in games )

But to your question, most likely no. As far as I know, another Metro game is in development right now.