Partial Publish Post

Hi all,

Hope I’m in the right forum here… Looking for a plugin that might be able to pull this off:

Say I publish a post, but only want the first part of it exposed on the website. Say it’s a news story that’s 10 paragraphs long. So the first 3 or 4 paragraphs get published immediately, but the remainder stays in the system. THEN, after, say 4 weeks, the entire post (all 10 paragraphs) gets published.

Tried searching around to no avail. Anybody know of such a beast?

Many thanks!