He was quite twitchy when he hit the ground (his face and his right hand in particular), but I don't think that means much. The cut to black seemed to be more of a musical cue than anything else. Also, Johnny assumed he was dead right off the bat. Notice how most of them continue their sweep while two stay back to cover him, but neither check him for a gun or a pulse. So basically, who the hell knows. I'm gonna go with number 2, but I don't think the eyes close; the spasms just make it look like they might.
So anyhoo, just wrapped it up and I think the last 8 episodes were probably better than the first 5 1/2 seasons combined. The necessity of wrapping things up seems to have lit a fire under their ass, causing them to really crank the narrative up a notch.
Now, here's the thing that bugs me. Am I the only one who thought Hank acted like a real asshole upon discovering that he'd been fooled? In fact, I think most of them did, but Hank in particular. As I see it, he took the whole thing way too personally. Yeah, Walt really bamboozled him, but I think I'd be more interested in the details than going all Khan on WW. As soon as he figured it out, his career was over, he was going to go down in disgrace, and he might well get implicated in the whole thing once a staggeringly thorough investigation is complete. At that point, it was time to cut his losses and find the best way out for everybody. Taking the time to talk things through and gain some insight would have been a far more appropriate response than just assuming all of the worst possibilities and getting all blood-lusty. Were it me, I probably would have belted him once in the nose, and then sat down to talk the whole thing out over a couple of beers. Finding out about Gus, and Beddiker, and the other miscellaneous bodies would have been more important, I think. And in the process he would have discovered that a lot of what he assumes about "Heisenberg" isn't really the case.
I was also disappointed to see Jesse get away. I never really had much against him until he turned snitch. If he couldn't burn the house down, fine, but he should have told Hank to go fuck himself and waited for another chance. Get your revenge or die trying, but don't go to the fucking cops.
Most of Walt's family was completely worthless. His wife and sister-in-law were always annoying and troublesome, and his son was generally pretty miserable. The final straw being calling 911 and saying it was Walt who pulled the knife and was running amok. I say fuck all of them.
Which is the most interesting irony of all. The part of the entire story that most interested me was seeing a sympathetic and generally likeable fellow very gradually turn into a vicious, psychopathic bastard. Yet in the end, Walt was actually the only one of the lot that I actually think was worth a fuck. Not because he redeemed himself; that certainly didn't happen. Just because he was the one who almost always did the right thing under the given circumstances. While all of the rest of them failed miserably in that regard, Walt usually made the strong move, and in the end he was the only actual winner; the only one who actually accomplished exactly what he wanted to. He lived a little longer than he expected, but more importantly he really lived. Plus, the family is going to get 9 million bucks, despite their bitching, whining and snarkyness. The fact that those awful people are going to living off of blood money without even realizing actually makes me somewhat happy.