The flight is good for O&D traffic. AA is not the only carrier offering these extreme times. Air France's second daily Paris departure, which resumes 2 November, also leaves past 2300 (2315 I think). Iberia has a midnight departure to Madrid, and Martinair has a past-midnight departure to Amsterdam. The timing can get connecting passengers from the last arrival of Eagle flights, but that is probably all the feed, IMO, that this flight will get (and need). What I am surprised at, however, is why not make it a daylight flight? A daylight flight can get really good connections from deep South America. Though it probably has to do with slot issues.