She'd be approximately 80 by now, assuming she's still alive. One suspects she would probably have moved into what might be called latter day Mae West-style roles as time passed. She'd have been in her early 50s, for example, when "Roger Rabbit" was made; it's not out of the question to see her in Joanna Cassidy's role in that movie, for example. These days, assuming she were still getting the occasional role, she'd be cast as someone's outrageous grandmother/great-aunt.
Then too, one wonders what might have happened with respect to John F. Kennedy after he was shot: would she, at some point, have told all, and what ripple effects might that have had?