Although I am sure there isn’t a set number, or definitive %, of accepted applicants, I do think Hopkins has more to gain by seeing its ED acceptance rate decline year-over-year. If that is the case, then I think it is reasonable to expect a 27-28% acceptance rate. That would be achieved if they accept the same number of applicants as last year (539). Last year they accepted 539/1,865 (28.9%). 539/1950 this year would be 27.6%.
All of that said, I also think Hopkins (like all elite schools) has a solid desire to fill its class of 2020 with the highest caliber of individuals possible and can also increase its overall yield by accepting more ED applicants. So, I am going to be optimistic and guess they will accept closer to 575 this year (29.5%).