Excellent. Self wasn't the one I would have pegged as the turncoat, but he certainly was a less cliched choice than the other options (his boss and his redheaded partner). That twist certainly explains why he was peeved that Red wasted the Chinese guy - he was the guy Self was going to sell Scylla to.
Given the ratings, this is the last season, but that's fine with me. This feels like a story that's just a dozen episodes or so from a final wrap-up. I have no idea what they could do with a fifth season that would be worthwhile. Let's have that final mano-a-mano between Michael and T-Bag, and go out in high style.
Left standing at the end of the final episode, pretty obviously: Mikey, Linc, Sucre, Sarah. If they want to be radical, kill Mike in the final episode.
Still, a little sloppy for Michael not to check those papers when Self handed them to him.
And sloppy of Self not to fake up some authentic-looking papers. It's not like they'd have to hold up for longer than it would take for him to get out of the parking lot.