The ending of the original script was more like this.
Here is a snippet from the article I previously posted:
As you might expect, the third act was where things changed the most for Passengers. The general idea is still there – the ship’s problems are caused by a stray meteor and things begin to tumble after a third person wakes up – but everything is more coherent in the original screenplay. For starters it’s better set up (the problems with the core computer are more fundamental and seeded throughout), which makes it feel less like a random turn made out of a studio’s fear of boredom. Gus (Fishburne) is also a much stronger character; we learn a lot more about his past (he’s been ferrying colonists for over 600 years) and the post-hibernation illness is highly prevalent, making his death a lot more impactful. Crucially, he doesn’t have time to address the ship’s problems, putting the onus of fixing it explicitly on Jim and Aurora after his death.
It’s thus the real disaster part that’s the most different, with things much more frantic, yet less visually resplendent (the change was likely to give a typically blockbuster finale). There’s none of Jim having to hold the reactor vent open with only a door he removed using the heat of a blow torch as a shield before being saved by Aurora in space (a scene overly reminiscent of Gravity). Instead, after Gus’ death the pair find the hole in the ship that almost pulls them out into space, nearly killing Jim (and not the later mission). The anti-grav malfunction on the ship comes as Jim recovers, much later than in the film, forcing the pair into a mad rush to fix the ship. There’s a greater explanation of what’s gone wrong with the mini-sun reactor too, and the main characters replace the computer more simply without real incident. However, the reset makes the ship’s computer think it’s docked and begins venting cryo pods, gradually dumping the 5000 other passengers into space. Jim and Aurora rush to stop it and save the captain, but fail; eventually they really are the only ones left on the ship. Like the film, the script comes to an end at Homestead II, but this time crowds of people come pouring out of the ship – Jim and Aurora’s descendants.
I was thinking similarly to you while watching the film. I actually thought they were going to get pregnant and then wake the midwife from her cryo pod.
Yeah I read that article that talked about the ending to the original. That's not a bad ending either. The only thing is how many descendants would there be? 80 years would be like what thier kids and then incest grand children?