I am sure it will improve even further as you pointed out the languages outside of English are fairly low in data represented. However, I guess you said you speak Chinese correct? How well does it do with certain things like older poetic Chinese hanzi? In Japanese if there is a string of kanji it tends to mess up the context. Another area of Japanese it seems poorest at is keigo or polite business Japanese. The way you speak to a superior is almost a different language. So I unfortunately still can't use GPT-4 to help me with business emails (yet).