Watching the model train fall off the rails is probably symbolizing the last episode. The Soprano "family" seems to be going down.

I was expecting deaths of major characters, but im' still shocked nonetheless. At least Paulie is showing loyalty until the end.

"strange things happen all the time, and so it goes and so it goes. and the book says, 'we may be through with the past, but the past is not through with us'" - MAGNOLIA