This is part of the azurecurve ClassicPress Plugins which introduces the plugins I have available for ClassicPress.
The plugin I am going to cover in this post, is an existing one which has been brought up to standard; Conditional Links.
This plugin allows use of the cpl (conditional-links#download page link cbl (conditional blog link) shortcode with a slug parameter to link to a page whether it exists or not; the content between the opening and closing shortcode tags will be the text visible to visitors. If the page exists it will be linked, otherwise standard unlinked text will be displayed.
This allows you to publish pages while the site is being build without having broken links, but as soon as the page, or post, is published, the link will immediately be present and working without the need to go back and edit a page).
The plugin can be downloaded via my Development site.