WOW, I would plan on next year. In this game the early bird gets the worm. On the other hand it also depends on what kind of bird you are. If you are an Ivy Leauge, 4.0, Dental Assistant, BS with honors, 21 DAT, Kind to kids and animals, with a rich daddy kind of bird ... you might have a chance. If, on the other hand, you are a mortal, don't quit your summer job.
It took me two tries to get in and I applied in August the first time, too late for most schools. Although they put that the app deadline is in March they start interviewing in August and accept first round December 1st.
Good luck, I hope you do get in, but plan now for next year.