Bulk/Mass-update expired posts button/option for when cron misses scheduled expiration and leaves items as past expiration but not expired.
I would love to see a button which would scan for any/all expired items on the site and (re-)apply their expiration rule.
There have been instances where WP Cron has missed the expiration that was set on a number of items, and that went unnoticed for quite a while. This means there's a decent number of items which need their expiration rule applied since they were missed.
I figure a bulk operation button would be great for making sure there aren't any loose ends.