User blog comment:B214/Question & Answers 5/@comment-178.128.187.173-20150913210726/@comment-1359322-20150913234849

There's none. He just replied to a post asking him about the changes in the anime and he merely replied that High School DxD BorN was changed so that he can make his idea of High School DxD EX work, like a birth of a High School DxD Generations.