I mean May 9th/10th. May 15th is the date by/before which OHSU should have made 136 acceptance offers, per AAMC traffic rules. This year May 15th falls on a Tuesday itself, so unless the AdCom decides to change their regular meeting schedule (unlikely, considering how many people's busy work schedules are already planned around the regular standing timeslot) it's highly likely they'll tell us the week prior.
Looking at past years threads, The News has traditionally come out on the Wednesday and Thursday prior to May 15th, after the final AdCom meeting on a Tuesday. Past threads suggest that a few last acceptances could trickle out Friday-Tuesday before, then on Wednesday the waitlist and rejections start to come out. Last year both waitlist and rejections started coming out on May 12th (Weds) without any obvious order; some folks didn't hear til Thursday. The waitlist ranking numbers and the final mercy kill culling of the hold pool appear to be made as a cohesive decision, but the delivery spacing over two days may just reflect something like maybe there's just one poor admin assistant who has to update each applicant's record one by one.
This is all just my semi-informed wild neurotic guess, though.
(Edited for clarity.)