I can't find a good enough reason for Tony to be killed after the pact with the Lutziazzi family, but I was thinking that they focused on the relationship between Paulie and Tony close enough to the end and Paulie seemed to be worried to be Tonys right hand man.Paulie seemed afraid of Tony in the 6th season and in the last few episodes he says that he survived cancer is afraid to be involved anymore but eventually gives in to the offer made by tony.Most people under Tony had some problem with him being at the top but there were all dead in the last scene...

It's just difficult to think that it was a happy ending.The guy sitting on the bench in the final scene was constantly looking around as more of the family arrived to eat which in my mind he was worried about as it gave him a more difficult job.Also the flash to Tonys and Bobbys conversation on the boat in the second last episode might have been a hint of things to come.

But it's all over now and I genuinely miss Sopranos already but theories about this kind of thing is fun.Would have loved to have watched it when it was aired so that I could share the fun.Friend finished it last week though.