The Big East will not lose its AQ status.
The BCS rules provide for 6 AQ Conferences, the rules provide a formula to determine who the 6 AQ Conferences will be based on a 4 year lookback.
There are 11 BCS Conferences, the 6 everyone knows about and the MAC, Sunbelt, WAC, Mountain West, and C-USA. All of the 120 schools in the NCAA FBS (Division 1) are BCS Schools. All 11 Conferences are on the BCS committee and have agreed to the rules. When the formula is computed for the next go round, after the 2013 season, there is no way the MAC, Mountain West, C-USA, Sunbelt, or WAC will surpass the Big East to take over 6th place.