Peter Gotti is still the official boss. He's got the title just like Vic Amuso and Carmine Persico still do. They all still have varying degrees of influence but obviously they obviously aren't in any position to directly run things anymore.
As far as anyone knows, Arnold Squitieri is still the official underboss and Joseph Corozzo is still the official consigliere. But how much they will step back in, and when, remains to be seen. It's always possible we could see a new acting boss or a new ruling panel put in place.