Last year there were around 116 applicants, 13 attended, 4 got funding. . .That is all I know.
As for the program, it has been a great opportunity to work with great professors and take some really interesting classes. You take four classes each semester, and they are very open about what you take. Four classes is bit intense, but it is good in a one-year program. The only difficult part for me, anyway, was not having a real advisor. The DGS of EAS serves as your advisor (this year Deborah Davis, I don't know about next year). . . but other than that I would highly recommend it.
If you are looking to continue into a PHD program, it is a mixed bag. On one hand it is definitely a plus to have an MA from Yale, on the other, it is difficult to get recs from profs so early. But they are super friendly and willing to help you out as much as they can.
If you have not received a rejection you are most likely accepted. Last year they sent out their mass rejections, and then took their sweet time sending acceptances.
If you have any more questions, let me know!