Now, Z Launcher team is certainly working to make it better. The Z Launcher twitter account has replied to queries from users and the replies reveal that Z Launcher may soon support Russian Language and extended letters.
@ChrJohannesen We are definitely working on it
— Z Launcher (@NokiaZLauncher) December 4, 2014
@arturs_savickis Very soon 🙂
— Z Launcher (@NokiaZLauncher) December 3, 2014