About 20 years ago I got it into my head to write a screenplay: an update of “When Worlds Collide,” based on the book from the 1930’s not the movie from 1951. When originally written, the question was “can we build a rocketship to fly to another planet?” My rewrite would set it a century later (mid/late 2030’s), when the question would be “how many rocketships can we build?” The arks would go not just to Bronson Beta but also to Mars, the Moon and asteroids, all of which would have already been visited by that point anyway. Nations, billionaires, corporations, organizations all slapping together ships of all sizes, to launch as many people, plants and critters as possible. The story would be otherwise much the same as the book.
The sequel, “After Worlds Collide” would remain possible. In the original, the Nazis and the Commies join forces to build their own ark and continue to be dicks on the new world. In my update, their place would be taken by, say, the ChiComs and the Jihadis… but again the story would be similar. One American ark lands on the new world, which they find to have once been populated, the original inhabitants having left a number of domed cities behind. The new world ends up in solar orbit, but an elliptical one… as far out as Mars, not quite as close in as Venus. So those domes cities will come in *damned* handy. But there are arks all over the place, with some working together, others working to take over.
Sadly, I never got around to writing the screenplay. News broke that Spielberg wanted to do a remake of his own and the idea of me writing a competing screenplay became monumentally stupid. Still, I’ve never forgotten the idea and I still think it has merit.