I'm fairly sure you're correct that AA doesn't offer lifetime Executive Platinum, at least not officially. I dated an EP desk agent some years ago. (FT old-timers may recall seeing us at a couple of Dos). She didn't know of any, either - and we discussed it, since at the time 4MM or 5MM might have been within my eventual grasp if I hadn't changed careers. There may be an unofficial deal via a corporate agreement or two, that sort of thing happens, but nothing that we regular folks can earn in any predictable way by flying a lot.