Back to the idea of Gremlin (singular) prequel during WWII.
In 1937 just before Japan invades China, a young Mr. Wing finds and rescues Gizmo from the forest. In 1941, they stow away on a Pan American seaplane to Guam. A stewardess and Pacific cable repairman take them in, and a naval base family's children are fascinated with Gizmo. The expected happens, wreaking havoc on their tropical community until the Japanese invade
. All evacuate except for Wing and the cable guy who hide
on the island. Gremlins sabotage Japanese machinery throughout the occupation, but can't migrate because saltwater is fatal. Americans arrive and recapture Guam, as do non-native brown tree snakes, which bite and paralyze nearly all the gremlins who burn at sunrise. In 1945 Wing and the cable guy emerge from their subterranean tunnels
to see the Enola Gay arrive. The remaining gremlins want the atomic bombs for themselves, and in the final action sequence (possibly airborne) steal and accidentally detonate what turns out to be a test "pumpkin bomb."
How long can Disney cling to the rights to the film
they never made?