Dino Boy in the Lost Valley, to use the segment's full title, is an example of an idea that never really reached full fruition.
Dino Boy (Johnny Carson, not to be confused with the late night host by the same name)'s story was never concluded, as only one season's worth of episodes was produced. Which is a shame, when you consider that 8 years later, Hanna-Barbera mounted Valley of the Dinosaurs, an animated series similar in tone to the Kroffts' Land of the Lost on NBC, but what if the Butlers weren't lost in time? What if the Valley was somewhere in present time, similar to the live-action movie, "The Valley of Gwangi"? That would've opened the door to the return of Dino Boy, since Valley aired on the same network (CBS) where this episode, "Giant Ants", first appeared.
Considering that the Butlers never made it home, either, well, put the pieces together, and you have the potential for a movie that might also include Jonny Quest, to tie it all together in one tidy package. Of course, since WB hasn't got a clue.......!