In the unauthorised version shown on Tencent Video, Durden is still shot and killed, but the final scene of the buildings exploding is replaced with a black screen and words that say the police discovered the plan, stopped it, and sent the Narrator to an asylum.
handwobble
Yes and no. Yes the plot was stopped. No in that the end card implies it was stopped cold and clean.
Book implies the tylor peronality may be dead or may not be, but project meyhem still lives on.