Coming to terms with the ending
Since I can't un-see it the ending, and it's not really explained, I decided to turn that into a "feature not a bug." >!As far as we know the fabric of the multiverse has never been ripped in quite this way before. Certain people were key to it in ways we never understand. John Smith's death seems important, but Julianna supposedly was the one constant, the North Star, and she's alive.!<
>!We don't know if/how/why the new people knew about changes and how "the portal" appeared to them on the other side - if it appeared to them at all - maybe it was a bright spot shimmering in the air.!<
>!It could be all the exterminated people, coming back because they can, or for refuge if they're in a worse place, or to fight for this universe. Or - are the universes fusing?!<
Because we don't have tons of answers, we can arrive at our own explanations. >!Something new has happened, we don't know what exactly triggered it, and no one has any idea what's going to happen next. !<
Yes, this is kind of a copout. Maybe other people have better explanations. But to live with the ending I'll just think of it like the ending of The Truman Show. What happens now? We don't know, because for the first time no one is filming his every move. >!Everybody from this world is saying, "OK, this is new. What now?" Maybe the newcomers are saying WTF too - no idea. So may the universes are fusing onto one timeline with a promising future (if you're not a Nazi).!<
I would have liked to have seen Trade Minister coming through!
Having only been through the series once, and having not read the book, my opinion means nothing. I do remember that the tunnel was acting weird an episode or two before. Someone's lighter or cigarette case flew off a table.
ETA: I covered up almost everything because the software reckoned I might be inserting spoilers.