Post Status Scheduler allows for scheduling of post status changes, category/tag adding or removing and 
removing of postmeta on any given date or time. It can be activated on any post type and shows 
up on the post edit screen in the publish section. From version 1.0.0 it has a feature for sending 
an email notification to the post author on the scheduled update.
<h4>Shortcodes</h4>
<ul>
<li>[pss_scheduled_time post_id=””] can be used to get the post’s scheduled date and time.</li>
</ul>
<h4>Filters</h4>
Scheduled Update: 
* post_status_scheduler_before_execution 
* post_status_scheduler_after_execution
Email Notification ( version 1.0.0 ): 
* post_status_scheduler_email_notification_recipient_email 
* post_status_scheduler_email_notification_subject 
* post_status_scheduler_email_notification_date 
* post_status_scheduler_email_notification_body

Post Status Scheduler

Change status, categories/tags or postmeta of any post type at a scheduled timestamp.

Ben Balter

This plugin will work, “as is”, out of the box, but assumes some level of CSS and developer customization to adapt to your site’s specific needs.
Styles can be overridden via your theme’s style.css
Functionality can be overridden via your theme’s functions.php
”Examples”
Don’t display metabox on “product” post type:
<pre><code>add_filter( 'display_custom_fields', 'bb_no_product_metabox' ); function bb_no_product_metabox( $true, $post ) { if ( $post->post_type == 'product' ) return false; return true; } </code></pre>
Don’t display the product_id metakey
<pre><code>add_filter( 'dcf_postmeta', 'bb_no_product_id' ); function bb_no_product_id( $postmeta ) { unset( $postmeta['product_id'] ); return $postmeta; } </code></pre>
Don’t display metabox title
<pre><code>add_filter( 'dcf_heading', '__return_false' ); </code></pre>
Display metabox below content (rather than floated to the right)
<pre><code>add_filter( 'dcf_before_content', '__return_false' ); </code></pre>

Display Custom Fields

Inserts a Wikipedia-like metabox into posts with all the post's associated custom fields and taxonomy terms.

Post Status Scheduler vs Display Custom Fields