In that alternate universe I sometimes find myself inhabiting there was a Masked Marvel feature starring the hero from the Republic serial. Republic itself instead of just licensing their popular characters to Fawcett or some other comic book company they would publish the comics themselves churning out comics starring their own galaxy of western stars. But more importantly they would have put out a comic titled MASKED DETECTIVE COMICS featuring the continued adventures of not only the Masked Marvel but the Copperhead as well.Heaven knows the Copperhead deserved a sequel after THE MYSTERIOUS DR.SATAN(1940).
There would be a comic book sequel to the Masked Marvel serial in the world. It came in 1990 from AC Comics. It was featured in CLIFFHANGER COMICS 1A and was written by Jodi Ensign and illustrated by Mark Heike and John Dell with a cover utilizing a still from the original serial.