The Good, The Bad, and the Ugly 2

Following the release of Sergio Leone's The Good, The Bad, And The Ugly, there were plans of a follow up film. It would've been the fourth installment in the Fistful of Dollars franchise.

Plot
Set in the 1880s, Tuco was searching for Blonde for revenge, while Blonde's grandson served as the successor to his grandfather. Clint Eastwood would've been the narrator.

Why It Was Cancelled

 * Initial reaction to A Fistful of Dollars, For A Few Dollars More, and the last one were negative, due to it's violent nature of each film compared to American westerns at the time.
 * Sergio Leone didn't want to do a fourth film, and would go on to direct Once Upon A Time In The West￼

Results

 * The film was cancelled.

Trivia

 * The film would've been considered "a sequel to a sequel".