Sorry, I did not realize I was not being clear. What I mean is, I understand the so-called AAMC "Application and Acceptance Protocols" are merely suggestions, and are not required unless and until individual schools require them. So, schools such as yours have required accepted applicants to narrow their acceptances down to one school after 4/30, and to indicate that selection through the PTE designation in the CYMS tool. You should be able to run a report (after 4/30) to see which of your accepted students have PTE'd or CTE'd elsewhere, and to take action accordingly.
On the other hand, since the protocols are merely suggestions until implemented by a school, I've been asking whether you know whether a significant number of schools have not required their accepted candidates to use the CYMS to reduce their acceptances to one after 4/30 by selecting one school as PTE or CTE. Any school that is not requiring use of the CYMS tool to select it, at least as PTE, until 3 weeks before classes start, is allowing that applicant to hold that admission, blind to any school at which the student has elected PTE. If this is happening all over the place, applicants could be holding multiple acceptances now just like in February, and that's what's messing everything up for everyone who hasn't settled in at their first choice (at least among remaining choices), and for you, since you can't know whether or not your PTEs are holding undisclosed acceptances at schools that haven't required them to use the tool and reduce their acceptances to one. The "protocols" are worthless unless everyone is required to follow them!
If this is not happening, you are not going to see a lot of WL movement, because nothing is going to precipitate it. For the most part, your PTEs will convert to CTEs because no schools are going to have vacancies they need to fill. If students are holding multiple acceptances without using the CYMS to reduce to one via PTE (because all schools are not requiring it), this will cause the WL activity you are anticipating since vacancies will be created when they release their heretofore unidentified multiple acceptances.
I am questioning, if this is in fact going to happen, how it was in a any school's interest to allow it to happen? If all schools are like yours, then where is the WL movement going to come from that will cause you to lose your PTEs?