The proximate story tonight features Westfield - or, actually, our Westfield and alternate Westfiield - being brought together by the nefarious David Robert Jones. The result is that most people in the town are going crazy and have double parts of themselves, because their persons and alternate persons are being merged. Walter, Olivia, and Peter are in the town, and they're ok, as are a small group of people. Walter figures out that the small group is alright because there were no counterparts on other side who are in alt-Westfield, so this small group is unmerged. Same for Walter, Olivia, and Peter. All of this has a nice Twilight Zone feel - high praise indeed - with a touch of a cartoon I saw when I was kid about someone who drives onto a complex cloverleaf highway system, and can never get off it, just keeps driving around and around.
But there's something more. Olivia also feels a little strange. Walter tests her blood, and, unlike the mergees, who have twice the number of human chromosomes, Olivia has the right number. Which makes sense - since Olivia was having a hot dream about her and Peter before she and Peter and Walter ever got to double Westfield.
How can this be? Why would our Olivia in the new our side be dreaming of making love with Peter? Well, I've been saying all along that the deletion of Peter did not really make two more realities or universes, just a not-that-different version of our universe/alternate universe. And here's the important point about that not-that-different version: unlike Fauxlivia, who has none of Olivia's memories, or Walternate, who none of Walter', the new Olivia of this season has all of the Olivia of last season's memories, and same for Walter. And that's because, the new and old Olivia are not alternate versions of one another - rather, they are one and same person.
And this in turn means that, given the re-insertion of Peter into this world - the original and alt-original universes - it's just a matter of time until our new Olivia gets all of her original memories back, and same for Walter, etc. It's already happening and the pace is increasing. Olivia surprises Peter with a passionate kiss at the end, Walter's beginning to get it and may not want Peter to leave ... it's falling into place ...
Unless the Eternal Bald Observers do something to mess this uppp.
... Fringe 4.2: Better and Worse Selves ... Fringe 4.3: Sanity and Son ... Fringe 4.4: Peter's Back, Ectoplasm, and McLuhan ... Fringe 4.5: Double Return ... Fringe 4.6: Time Slips ... Fringe 4.7: The Invisible Man ... Fringe 4.8: The Ramifications of Transformed Alternate Realities ... Fringe 4.9: Elizabeth ... Fringe 4.10: Deceit and Future Vision ... Fringe 4.11: Alternate Astrid