HUUUGE feature would be to implement automatic translation. You can use OpenAI API to send text to it, and put translated portions in the correct position in article as it is in the original.
After all, most of us will use ChatGPT to translate articles to different languages, why not automate this from start?
I wouldn't mind if it takes a week after I click on "Automatic translate" until all my articles and collections are automatically translated, it will save me LOTS of manual copy/paste to GPT > translate > copy/paste to Notion work