Finally got around to watching the two-part finale. It was pretty decent, although I think the path of "explaining" things is fraught with peril. I've always felt the show works because it exists in parable-space, making up meaning without really having to engage a chain of logic (e.g. "Who are you?" "We're the good guys" -- that's f'ing brilliant!).
So, I'm basically comfortable with a lot of things not getting explained -- that piece of statue, polar bears, etc -- because I think the fun of the show is in projecting your own explanations and theories onto it, and because I fear that attempting to tie up these loose ends will be a dissapointment. But so far so good.
Also, always a pleasure to see Clancy Brown at work. I dig his acting. He was on back earlier this year as US Military dude who interacted with Saed in Iraq. The two times he's appeared the characters have had different first names, but the same last name, but could be the same person. Or not.