The footage at the beginning of Ronnie Miscavige in the movie within the movie made me curious as to where he is now. From what I could find out, he and his wife left in about 2000. His daughter Jenna has been an outspoken critic. He is David's brother.
Ron & Bitty (Elizabeth) reside in Williamsburg, Virginia, where Ron is a real estate broker. Bitty works in his office. Several years ago, Jenna & her husband Dallas pulled up stakes in San Diego & moved to Virginia to be near her parents.
Ron & Bitty have avoided all discussion about Scientology, including having nothing to do, publicly, with Marty or Mike, although Mike lived with Ron for awhile after blowing the cult in the UK. https://www.facebook.com/profile.php?id=552478986
Interestingly, one of Ron's FB friends has the last name of Rathbun, but have no idea if he's related to Marty.
Jenna & her mom