I was on the ND provisional list last year. They told us that 40-50 ppl would get off, and they told us that again in May, and finally in JULY they told us they had gotten way more people than expected and that around 5 people would come off. Bstween LSD and LSN, only two people did.
They kept us on the waitlist until the third day of school. In addition, because of their crazy high yield last year, they offered people $$ to defer until next year (true story).
Of course admissions are crazy and you never can tell what is going to happen-- just wanted to give you the info. Good luck!