So many things are coming together in this show. There has been so much foreshadowing. There was a line by Saul a couple seasons ago, something like, "what is the first thing a lottery winner doesn't do when he wins the lottery? Buy a lottery ticket.." And then Walt puts the coordinates on the lottery ticket.
Some other instances of foreshadowing.
-- In season two, they had those weird flash forwards with the burned doll floating in Walt's pool, but only for a few episodes. Those episodes were:
"Seven Thirty-seven"
"Down"
"Over"
"ABQ" (the airport code for Albuquerque)
The last episode has Jane's air traffic controller dad, distraught over her death, causing the mid air collision of a small plane and a 737 over Albuquerque, raining debris all over the city and Walt's house.
-- In the episode where Jane died -- not really pertinent to the story now, just that it was foreshadowed -- Jesse made Jane breakfast in bed and took it to her. She woke up before he got there, and he goes "you weren't supposed to wake up.." she responded "ever?" Also, Walt lays his new baby down on the mattress, and puts down a spit up cloth next to her face and says something about "in case you spit up in your sleep.."
-- Another thing that is pretty neat is that Walt is sort of "absorbing" some mannerisms of the people he has killed. He killed Krazy 8 (who cut the crust off his sandwiches) and then Walt starting doing the same thing. He killed Mike, and started drinking whiskey on the rocks (he would previously order w/o rocks), and when he threw up, he placed a towel on the floor to kneel on -- which is what Gus Fring did when he threw up the poison pill he'd purposely ingested. (Just found the link that describes this:
http://www.uproxx.com/tv/2013/08/bre...foreshadowing/)
Reading that link, there is a ton of color hints that Gilligan is dropping. Nothing is coincidental in this show.
I love the scene with Walt's neighbor dropping the groceries when she sees him and the oranges rolling out. In the Godfather movies, oranges were frequently used as a sign of impending danger.