It's unfortunately just an inherent part of what a waitlist is. Class sizes are constantly changing, so there is no way for them to "guarantee" if and when a student may hear from a school. The waitlist process can be brutal, but schools don't do this just to purposely make the process harder for students. If they did offer that type of information and then they are unable to start pulling based on the class profile at that time, to me, that is a lot more challenging than knowing now is when schools roughly start to pull people from the WL every year. keep your head up!!