If history serves to repeats itself, for the last 2 years the Regionals are release unoffically (usually Sept5 or 6) prior to the email blast which usually is released on Sept 12. Check out the 2008 and 2007 Email Blast Archive
09/12/2007 Get Ready for 2008 FRC Event Registration!
http://www.usfirst.org/community/frc...t.aspx?id=6622
09/12/2006 Welcome to the 2007 FRC Season
http://www.usfirst.org/community/frc...t.aspx?id=3130