Apple has published a preview of the new features in MacOS 13 Ventura to be released in the fall. For the language area these additions include:
System Languages: Bulgarian and Kazakh
Keyboard languages: Apache, Dzongkha, Samoan, Yiddish
Dictionaries: Bangla–English, Czech–English, Finnish–English, Hungarian–English, Kannada–English, Malayalam–English, and Turkish–English
Translation: Turkish, Thai, Vietnamese, Polish, Indonesian, and Dutch
Live Text: Japanese, Korean, and Ukrainian
VoiceOver and Text to Speech: More than 20 additional languages and locales, including Bengali (India), Bulgarian, Catalan, Ukrainian, and Vietnamese
Chinese: Cantonese input using Jyupting and other phonetic methods, Sichuanese dialect support, Changyong input for Shuangpin users.