It's still not clear that the VA will find the building structurally sound and it's unclear how hard SHPO will press back against any VA attempts to demolish the building (or more of the building than necessary). Right now, there's not even an estimated date for when the structural assessment will be made public.
SHPO, as a guardian of the state's historic resources, should help to serve as a sort of firewall to prevent unnecessary damage to the Dixie building, but you need to let SHPO know just how important the building is to you and to New Orleans.
Contact the State Historic Preservation Office and let staff know that the Dixie Brewery is a landmark building that should be preserved and adaptively reused to the greatest extent possible:
P.O. Box 44247
Baton Rouge LA 70804
Phone: (225) 342-8160
Fax: (225) 219-0765