What exactly were the contents of the interview? Did Harry reveal the dual cores his and Voldemort's wands share? If not how did he explain his escape? As far as I'm aware he never reveals this to anyone.
Before the interview he maintained the lie that Cedric was killed by Voldemort not Wormtail. Did he reveal how Wormtail killed Cedric? If not how did he explain how Voldemort did it before he regained a body? Did he describe Voldemort regaining his body at all?
Harry had not found it an easy experience to talk about the night when Voldemort had returned. Rita had pressed him for every little detail and he had given her everything he could remember, knowing that this was his one big opportunity to tell the world the truth.
(Order of the Phoenix, Chapter 26, Seen and Unforseen).
Presumably this would include details about the twin cores and Cedric's death. We're not given details of what featured in the final article so can't be sure of what exactly Harry remembered or forgot, and which details Rita (or Xenophilius Lovegood) cast aside in the editing process. Nevertheless, the excerpt above indicated that it was an exhaustive interview and that Rita wanted to give a full account of Harry's story. We can only assume that this meant that most of the information from the graveyard scene in Goblet of Fire made it into the final piece.
