This year , It looks that they have done things differently, we used to see big wave of acceptance in March 2-10 and then publishing wait list after. This year we didn't see that big wave of acceptance. Also don't forget they already had early admission acceptances. We don't know how many they did take. My guess they look at the scores of the group they accepted (RD) and guessed who will join and who will go with another medical school, take that number and multiply by 2 or 3= 60 students wait listed
Add to that complications, they usually accept way more than their class at MCG. MCG has 230 openings they could have accepted 250- 275 acceptances for the 230 openings knowing that 50 of them will go to different school..
Never give hope, I heard so many stories with acceptances way late in summer.