Starting mid-January there are about 40 submission dates (that are not final round) for leading MBA programs in the world (top-25).
There programs begin September 2013 or early 2014. They are not final submission dates (in which it is usually significantly harder to gain acceptance).
These application dates are outlined here:

Hope this helps, good luck!

Put Me in Business (applying in less than a year)
Put Me in Business (applying in more than a year)