USNA has informed BGOs that 1450 offers of appointment are being made for 1230 slots. These offers will go out by April 15. There were over 15,000 applications. Candidates have until May 1 to accept or decline their appointments.
There is a wait list. Whether anyone on the wait list will be accepted depends on whether USNA gets 1230 acceptances from the 1450 offers. There is no word on how many people are on the wait list. There is no ranking within the wait list. If fewer than 1230 candidates accept their offers, USNA will review the wait list and pick the most qualified candidates. Those on the wait list should submit new grades, honors, awards, etc. While new letters of recommendation are accepted, they are discouraged as USNA believes they generally repeat information already in the candidate's packet.