It never “un”locks. My application still shows as locked for review and I’ve been on property for a year now.

You’ll either get a TBNT based on your app, or the hogan in your email. I’ve heard of rare cases of an app locking and then unlocking without any further follow up (TBNT or hogan), but those are few and far between it seems. Either way, staying locked without a TBNT is a good thing.