I wouldn't mind a PV-1 Ventura and PV-2 Harpoon, which was a related development. The PV-2D would make for an interesting alternative to the A-20, or to the B-25C strafer. Eight forward .50cal and 4000lbs of bombs + 8 5" HVAR rockets under the wings.
Trivia: A Lockheed Hudson stood-in for the P-61 Black Widow in The Great Raid, since none were in flying condition when it was made.