Short answer - Yes.
If you qualify for the Streamlined Procedure but have been accepted into one of the offshore voluntary disclosure programs prior to September 1, 2012, you may opt out of the offshore voluntary disclosure program and request the Streamlined Procedure.
To opt out, you need to inform the examiner of your decision in writing.  This is an irrevocable election and you will receive a notification letter confirming this.  The examiner assigned to your case will then be able to make a risk determination of your submission and close your case according to the Streamlined Procedure.  If all submission items for the voluntary disclosure program have already been submitted to the IRS, you will not be required to make a second submission for the Streamlined Procedures.