Fact 1: Katheryn was originally going to secretly be Snape's actual daughter.

Fact 2: She was going to have a little past romance with Draco.

Fact 3: Cedric was going to die, but I changed it.

Fact 4: Rosie and Ash were never going to exist.

Fact 5: Katheryn was going to have a sister that got with Harry.

Fact 6: Katheryn's name wasn't going to be put into the goblet. Which means she wouldn't have been in the Triwizard tournament.

Fact 7: Originally, Cedric was going to meet Katheryn during the first task.