So -- based mainly on the images I dissected above -- here's what I think "it all means":
[1] As I've mentioned in other threads, I think Tony is going to be "betrayed" by the U.S. Government; an intensely and truly patriotic man, he's going to find his love of country will be turned against him. This will lead to his eventual destruction. After all his criminal acts, it won't be his life spent "on the dark side" that ends up spelling the end for Tony Soprano... It will be his (perhaps, one) actual attempt to do something altruistic, something that in no way benefits him (in fact, "turning in" the Middle Easterners to the FBI could have wound up being bad for business on so many different levels) for the good of someone else -- an entirely unselfish act, done for "everyone" in general, and no one in particular, done at the bidding of an agency of his nation's (executive) leadership -- that leads to the unraveling of his entire life, perhaps its end. This is pure David Chase, that crime DOES pay -- patriotism, however, in all its forms, does NOT. Specifically, I think Tony will be ratted out by Agent Harris -- who, I agree, has NEVER stopped working OC -- to his own kind, annihilating his own crew's trust in him and forcing him into a corner: he can either "come in" and turn state's evidence against "this thing," or he (and, possibly, his entire family) can be cut down by his "other" family -- the ONLY family, btw, he's ever truly sacrified for; his wife and children have gotten his leftovers, his ********, his static. Look at his face in the 6B pictures. He's not just annoyed, stressed, harrowed, fearful. He's desolate, stunned. He's lost EVERYTHING.
[2] As I mentioned above, Tony will be given a choice between cooperation with the FBI and decimation at the hands of his own. Being Tony, confronted with a fork in the road, he'll decide not to merely take it, but to GIVE it in return. He's the epitome of the Sinatra song (not a coincidence, then, that daughter Nancy showed up, somewhat incongruously); he'll go his OWN way, turning away from his country, the "light" of his non-Mafia family and salvation. In the end, intending to go out swinging, and having rejected everything he spent his entire life chasing (heh, "Chasing It"), he'll be swallowed up by the fate he was trying so desperately to avoid in his coma; and it will envelop him just when he's not looking. Perhaps in a moment of distraction (ducks?), or just when he thinks he's won his victory/freedom. Tony's demise (death) will be shocking, sudden, brutal and "inconvertible," in Paulie's parlance. ***** begged, "not in the face." I honestly think Anthony's whole damn head is going to be blown off, at the last. He may not even have time to react. Boom. Squish. Thud. Ice cream. Credits.
BTW -- wouldn't it be ironic if it were Vito, Jr. in the last scene? And if he -- other than Melfi -- were the lone "survivor" of everything that happens?
[3] Bobby will get capped when / because he's paying attention to something family-related, not "in the line." (And if you believe the spoilers, that's about right.) At a "safe" moment. Janice will be devastated like never before. Wouldn't surprise me if she went back to Seattle; she's had about all she can take.
[4] Meadow will die, and A.J. will be lost. A.J. will try to be an arch-criminal, but in the end, he's just a punk-ass juvenile delinquent.
[5] Chrissy, Paulie, and perhaps Silvio will die. (I hope not. Sil's always been the brains of the outfit, and other than Johnny Sack, the only halfway decent "made" guy on the show.)
[6] June will die. So much for the life of a Mob boss. Piss and cat food, and Monopoly. Hope it was worth it.
[7] Carm may live, but she'll wish she didn't. At the end, she'll suffer the most, losing -- in one way or another -- absolutely everything and everyone she ever cared about. As Ro might say, "Well, look at the bright side. Martyrdom suits ya, Carm... Ooh! Are those Manolo Blahniks on sale I see?"
[8] Tony/Melfi will arrive at some profound revelation at the end. It may end up triggering everything that is to come.
That's about it. I'm putting my crystal ball and DSL away until after the finale.