After speaking with my actuarial buddy, I think it will be an entertainer with an athletic background, as we've seen a comedian-actor in his early 50's go down first followed by a singer/songwriter-actor in his mid-60's, meaning the age might be a bigger crapshoot than trying to figure out the "who's next."
{A quick check of Abe Vigoda's background indicated that he was not a famous athlete of any kind, so he will more than likely sit this one out}