If a user gets to an Article Placeholder, they should be able to easily create a new article for the topic from there.
This can be done by starting off with a complete new article or by translating an existing article in another language.
Either way, article creation should be encouraged.
Description
Description
Event Timeline
Comment Actions
We can probably start an article from preloaded text, which will include infoboxes, categories, and a short introduction. (Infoboxes are probably easy to generate once we have global template.)
Comment Actions
Adding translation links is easy enough; see also T96134: Entry Point: Show an entry point to ContentTranslation at an empty page in action=view, T89706: Translate missing search results.