No idea how many but definitely more than the 125 previously thought. It almost seems like the only people who got denials were ones who maybe didn’t meet requirements, and then everyone else got waitlisted....?
If you count all of the pools together, there are usually like 250 alternates. 125 is usually just the OOS waitlist. They might have hedged higher this year, but I doubt by much. For a pool of 1850 total applicants, they probably rejected 1400-1500 people.
Even if you meet requirements you can still receive a rejection. People on this forum can probably confirm, especially since the requirements are very minimal.