Batman Continues

During the early development of the cancelled Catwoman spin-off, Burton expressed his interest in directing the third installment of the Batman film series that began with Batman in 1989.

Plot
The plot would be the same as Batman Forever, but with some changes in it. Rest unknown.

Why It Was Cancelled

 * Batman Returns was considered inappropriate for children.
 * Warner Bros. asked Tim Burton to step down as director in favor of another director.
 * Michael Keaton decided not to reprise his role as Batman because he didn't like the new direction the film series was heading in.

Result

 * The original version of Batman Forever was cancelled.
 * Warner Brothers released Batman Forever in 1995 with director Joel Schumacher at the helm.