After several anxious weeks of uncertainty, many people who publish blogs that use non Roman characters are happy to see that the Transliteration feature has been restored to availability. From the Classic Blogger GUI, Settings - Basic - Global Settings, we see a full array of supported languages. Alternatively, from the New Blogger GUI, the menu is at Settings - "Language and formatting".
Choices are now:
Amharic, Arabic, Bengali, Greek, Persian, Gujarati, Hindi, Kannada, Malayalam, Marathi, Nepali, Punjabi, Russian, Sanskrit, Serbian, Tamil, Telugu, Tigrinya, Urdu