Not sure how recent (or significant) this is, but I just caught on LoungeBuddy that all Escape Lounges have been rebranded as "Escape Lounges - The Centurion Studio Partner". They also now appear directly on the Centurion Lounge website itself (scroll down to Global Lounge Collection map and you can toggle between Centurion Lounges and Escape Lounges)

This is slightly reassuring for me because the Escape Lounge at my nearby alternative airport is a bit nicer than most standard Priority Pass lounges, so it is good to see it tucked a little bit further under the Amex wing.