The aeropilates guest is Marjolein Brugman. I had to google it as she is almost universally know on the forum as Margerine Burgervan!
I can't remember when she was last on, although the machine was being sold a couple of months ago.
Maybe Margerine is taking it easy at long last. . She's been selling Pilates for years now and must be pushing 70 years of age herself. But she may be the type who never gives up. Her body is fit but quite stringy. Time to pass the baton on to your successor, IMO.