RankOak

RankOak Connect links your WordPress site to <a href="https://rankoak.com/" rel="nofollow ugc">RankOak</a>, an SEO content platform that drafts and publishes articles for you. After you install this plugin:
<ol>
<li>Open RankOak Connect in your WordPress admin and click Generate API key.</li>
<li>Copy the key from the pop-up (you only see the full key once).</li>
<li>Paste it into RankOak when connecting your site.</li>
</ol>
RankOak then calls your site’s REST API using that key to create posts (and optional tags). This plugin does not create WordPress application passwords or add custom login flows — you stay in control with a revocable site key.
What this plugin does
<ul>
<li>RankOak Connect admin screen: Generate / regenerate / revoke a site API key</li>
<li>A read-only public REST check so RankOak can see the plugin is active (<code>/wp-json/rankoak/v1/ping</code>)</li>
<li>Authenticated REST routes protected by the API key (e.g. verify identity, create posts) when you connect from RankOak</li>
</ul>
Who should use it
Site administrators who use RankOak and want a one-key connection similar to other SaaS “generate API key in WordPress” plugins.
Privacy
This plugin does not send analytics to RankOak. Your site is contacted by RankOak’s servers when you have saved an API key in RankOak and use RankOak features that publish to WordPress, as described under External services.
<h3>External services</h3>
This plugin is an interface to RankOak, a third-party SaaS product.
<ul>
<li>Service: RankOak (<code>https://rankoak.com/</code>)</li>
<li>What is transmitted: When you use RankOak to publish, RankOak’s servers call your site’s WordPress REST API on routes registered by this plugin, using the API key you generated. Post titles, content, and optional images are sent over HTTPS to your own WordPress site only—not to unrelated third parties for advertising or tracking.</li>
<li>When it runs: When you have connected the site in RankOak (saved the key) and use RankOak features that create or update posts.</li>
<li>Terms of use: https://rankoak.com/terms</li>
<li>Privacy: https://rankoak.com/privacy</li>
</ul>
No other external servers are contacted by this plugin for tracking or telemetry.

RankOak Connect

Companion for RankOak: generate an API key in WordPress, paste it in RankOak, publish articles—no WordPress application passwords.

Roman

Syberspace

A simple WordPress Plugin to Schedule Content Updates
<h4>Motivation:</h4>
These days WordPress is scarcely used as a pure blog. Most of the time it is used as a full blown CMS with many additional requirements. Especially the publishing workflow for posts and pages as well as their changes becomes demanding. Using plugins like visual composer or advaced custom fields with their flexbox addon it becomes common to build huge startpages, subsites and langpages using a simple, understandable visual editor insted of bolting them together using custom post types. If this is a good and DRY way to go is not to discuss here 🙂
A Problem arises as soon as you try updating such a complex single page at a specific date in the future – there is no easy way so schedule changes to already published wordpress pages inside the wordpress core functionality. Existing plugins that try to tackle this problem are often far from feature complete and try to re-use the revision system. The experience we made with our customers showed, that the revisions approach is hard to grasp for less technical users and also rather error prone.
These are the main reasons for us to brew our own solution.
<h4>Features:</h4>
TAO Scheduled change is a really small plugin. It only does one thing, but tries to do this the right way: Take a copy of an arbitrary post/page/cpt, change it and make it replace the original post at a given date and time in the future.

<h4>Development:</h4>
This is just a little side project I am maintaining as time permits. If you find bugs or want to help in any capacity please visit the github repo: 
<a href="https://github.com/tao-software/tao-schedule-update" rel="nofollow ugc">tao-software/tao-schedule-update</a>

TAO Schedule Update

I'd love to see WordPress' official revisions, scheduled publish dates, draft management, etc. be extended to allow for scheduled updates to already-published content. Until that comes to be, this is definitely the next best thing that does what you'd want it to. Bonus that it's listed on GitHub for community support, suggestions, fixes, etc.

I'd think this plugin would get much more use & adoption if the listing was given a few refinements (the public plugin name isn't all that friendly, doesn't have an icon or banner, could use a few more screenshots [the animation is nice, though], etc.) That doesn't really reflect the usefulness or quality of the plugin. Think it makes for why something so potentially useful for so many sites doesn't have as many active sites using it at the moment.

Does exactly what you want

Take a copy of an arbitrary post/page/cpt, change it and make it replace the original post at a given date and time in the future.

RankOak Connect vs TAO Schedule Update