The only way they would ever get it back is after te FBI has totally wiped it and/or rendered it inoperable.
No way the FBI would ever allow the functionsl laptop with the evidence within to see the light of day.
IIRC Rudy Guliani reported that laptop and its contents to the FBI. They ignored the report but Guliani itemized the items to them and referred to it all on the air on his radio show in NY.