I am a very poor student and will have to downgrade my zotero before it renews, unfortunately. What will happen to all my well categorized and annotated assets?!
All metadata will continue to sync. All files will remain in your local library(ies). Zotero will never delete any files (or anything else) from your local library, unless, of course, you explicitly delete it. After about a month, files will be deleted from the server, so you can no longer access them on the website or from any mobile apps you may be using; you will also no longer be able to sync new files to the web or between devices.
Upgrade Storage
After about a month, files will be deleted from the server, so you can no longer access them on the website or from any mobile apps you may be using; you will also no longer be able to sync new files to the web or between devices.