This may be a goofy question. I received multiple acceptances this cycle and am still waiting for financial aid packages from schools. There is a school I am most likely to attend, however, I am not prepared to accept until I am able to hear all my aid packages and maximize the amount I will get. I know I have until April 30th, but is there a situation where a school may say "we've filled our class with students who accepted before you and you'll have to wait until next year?"