Google announced a ton of reminders around their handling of hacked sites within the Google Search Console, but also slipped in one new announcement around a new beta test they are trying.
Google is now testing the automatic removal of the hacked sites notification in the Google Search console manual actions section, if Google detects the hack has been reversed.
Google wrote they are "beta testing the automated removal of some hacked manual actions. In Search Console if Google sees a "Hacked site" manual action under "Partial matches", and our systems detect that the hacked content is no longer present, in some cases we will automatically remove that manual action."
So if Google can detect the hack has been reversed, Google may reverse the action before you get the chance to submit a reconsideration request.
Google does "still recommend that you submit a reconsideration request if you see any manual actions." Google adds, "but don't be surprised if a "Hacked site" manual action disappears and saves you the trouble!"
Pretty cool!
Forum discussion at Google+.