As of this moment, we do not have plans to bring back the old tagging feature. We are looking at making large improvements to the media experience on Ancestry which is why you haven't seen the old tagging feature return. I realize this is an important feature for sharing information around photos and we want you to share you photos, so we should have a feature like this for you to use. Thanks for keeping this thread alive and please keep asking for features and improvements that you want to see us make because it helps us get those features prioritized. I truly wish I had a better answer for you.
Jen Hodnett - Ancestry.com