It might be useful here to revisit the major New Deal programs. I've taken the list from the
FDR Heritage Museum.
Emergency Banking Act - gave rise to Glass Steagall which created the FDIC. That's still in operation and a change in administration won't cause it to go away. Glass Steagall itself was largely gutted in the 90's.
Federal Emergency Relief Act. Replaced by the Works Progress Administration, which ended during WWII.
Civil Works Administration - came from FERA above and ended with it.
Civilian Conservation Corps - ended during WWII.
Indian Reorganization Act - stopped the sale of tribal lands. Still in effect, and unlikely to change.
National Industrial Recovery Act - gave rise to legislation that created the NLRB and the minimum wage. Both will survive any change in administration.
Federal Securities Act - with the Securities Exchange Act created the SEC. This will also survive, though there has been discussion to roll back some provisions enacted recently. I see no discussion of how the New Deal framework change.
Home Owners Loan Corporation - discontinued in the 50's.
Tennessee Valley Authority - still here and staying.
Farm Security Administration - replaced by Farmers Home Administration during WWII and that was terminated in 2006.
Social Security Act - the subject of debate about its long term sustainability.
The only piece of the New Deal that seems to be threatened in the type of statements here is the SSA. The other parts are either long gone or unlikely to roll back to pre-ND forms.