The writer hinted that one of the original five X-Men could die in the new Marvel NOW! title.
"After eight years of being the chief architect of the Avengers, I've moved over to the X-Men, which is a scary proposition, but very, very exciting," Bendis told MTV Geek.
"My biggest fear about becoming an X-Men writer is that I had done a lot of stuff to the X-Men universe without being an X-Men writer.
"Like House of M, I gave Wolverine his memories back, I killed Charles Xavier. I know it shows a lot of destruction, but to me it showed a lot of love and affection for the X-Men."
The ongoing Marvel Comics series centres around Beast's actions to bring young versions of the founding superheroes into the present.
"What if one of them dies?" said Bendis. "What happens then?"
The video featurette also shows Bendis and editor Nick Lowe arguing about the best appearance of Beast.
Watch the full interview below: