8) Wolverine’s Daughter
In the comic books, the emphasis is very much on the fact that X-23 is Wolverine’s clone. In a universe where The Clone Saga happened (a convoluted tale where Spider-Man encountered multiple replicas of himself), that works, but in the often quite grounded X-Men Universe? Not so much.
Making Laura Wolverine’s daughter is a much more interesting move and makes a lot more sense from a scientific standpoint despite the fact that Logan does later go down the clone route with X-24. This also deepens the relationship between the two and assuming Laura returns somewhere down the line, the fact that she lost her father after such a brief time could play a big role in where she goes next as a character.
Furthermore, it also puts Wolverine in a situation he’s never been in before and it makes for a compelling viewing experience seeing the ageing mutant go through all that.