/w/api.php?action=query&format=json&prop=pageimages&list=&generator=readinglistentries&formatversion=2&piprop=thumbnail&pithumbsize=50&grlelists=210908
Was hoping to be able to pipe readinglistentries into pageimages to generate a list of pages with metadata. Doesn't seem like this is possible.
Are there any plans to support this (at least for lists where the project is the local wiki)?