There are more reports about Spider-Man 4 villains, this time with the possibility of Black Cat appearing and the plot of the film. According to reports, Rachel McAdams is one of several ladies up for the role of Black Cat.
They also report that the back-story for Black Cat could be changed. Their source reports that Black Cat will be the daughter of the new editor of The Daily Bugle, a man who is also referred to as ‘a viper’ and may also end up as a villain. She will fall in love with Peter Parker and will discover that he is Spider-Man. Her father then dies, and Hardy becomes a threat to Peter Parker (presumably as The Black Cat).