Yup, getting arrested by the badly dressed "undercover agent" type or saying "bye-bye" after "meeting" the two gangsters(which is ironically something Tony himself has done in the past to fix his problems) or even something bad happening to Meadow would have been too cliched of an ending; I don't think Chase would have done that to the fans.

I think he left it for us to decide which of these could have transpired or if anything happened at all for that matter. How does one end television history? Don't give it one...