Well, it looks like I’m not totally out of luck. My Cathay Pacific flight from Toronto to Hong Kong went from being sold out in first class to “F3,” which means they are selling three first class seats again. So at most there is one other person booked in first class as of now. OK, maybe I won’t be “totally out of luck” regardless of how full the cabin is.
Any chance my friends at YYZ ATC could delay the arrival of the other passenger so s/he misconnects? 😉