Thats a tough question as I've never seen any numbers put out there concerning Alternates from any Academy. But I would remain very hopeful if I were you. Its good he has that letter in hand and not the one that says, "We regret to inform you......" So hold on tight for a while longer! DO NOT get discouraged yet. Gooooood Luck & let us all know when you hear!
Boss, make yourself useful up there. Stop feeding those boys. Ever see Gremlins? Think about it...

How many kids apply to CGA each year usually? Can't be near the 50,000 at NA. LOL But if you could guess-ti-mate, would the alternate pool be somewhere near 80 to 90 kids that come out with an appointment? I could be way out there in noo noo land (no comments from the peanut section) but it seems it could be possible.