I saw an animatic for the movie's climax the other day and in one of the earlier drafts it went even more extreme than the final release. It might have been a bit too much, although it was wild. The gold magjnet starts ripping out giant gold ore deposits from the earth's crust and Kitty's heist starts turning into a geological catastrophe. The way Wolf actually beats her is that he sabotaged the life support system on her space suit and uses it to stop her heart while she's fighting. It was fuckin' brutal.

Given that Kitty doesn't have a redemption arc in the final version of the movie I'm kind of glad that they nixed her backstory with Diane. that would have been kind of depressing if they showed that Diane brought an innocent kid down a wrong path, and wasn't able to pull her back after she gave up crime. And if they'd left both the backstory and Kitty's redemption arc in there then the movie would feel like it's about Diane and Kitty instead of Wolf's existential crisis about how much worse his life seems now that he's gone good. That would get kind of overshadowed by what's essentially the same message from the first movie.