@ksyu & @cse1994 – I think that's a cushion the IL had built in…at the beginning of the year. Their date for Q2 followed the AICPA site. I think that the doc on the IBOE site might be an “under-promise-over-deliver” situation. IL is pretty good about getting scores on the same schedule as the AICPA, and I believe they will. In all of my experience, we have received scores by noon on the day that the AICPA quotes. They never come at midnight, so get some sleep on Monday night and don't wait up! Also, the Facebook page for the IL Board of examiners is really good. They always post when all scores have been uploaded. It's super awesome!
Hang in there! Good things come to those who wait! Good Luck!