Fringe Connections

The tombstone in Olivia's dream state in "Pilot" says "He's Not Dead", possibly referring to John Scott, assumed dead, who appears at the end of "The Arrival".

Donald helped Walter set up the pocket universe hiding spot.

The leaf glyph is on the electronic keypad at Massive Dynamic.

Walter looked at Peter's coin in "Novation" from the night Peter died in "Peter".

The cuneiform on the boat door says "bí".

The flower glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

Michael played the music box from "The Boy Must Live" for September after September got shot in "An Enemy of Fate".

Michael can show emotion as he cried when he saw Nina's dead body.

A seahorse can be seen on the Bishops' refrigerator.

Bell was unwell and needed oxygen in Olivia's memories in "Momentum Deferred" which could be because he had lymphoma as Nina revealed in the alternate timeline in "Brave New World (Part 1)".

In his dream at the end, young Peter is in bed wearing a jersey with the number 96 on it. The number 96 is the same jersey number that Joshua Jackson wore as Charlie Conway in the Mighty Ducks trilogy.

A hand can be seen outside the entrance to the daycare center.

When Peter left the hospital in "The Last Sam Weiss" he wrote "I am going home" on an envelope, the same phrase he wrote for Elizabeth in "Subject 13" when he tried to return to his home world.

Walter's pose as he listens to the Mozart Requiem is a reference to the iconic Maxell tape advertisement from the '80s.

Butterflies can be seen on a box in September's apartment.

When Peter drove up to the lake house in "There's More Than One of Everything" the camera focused on his car through a red panel of stained glass, foreshadowing that Peter was taken from the Redverse in "Peter".

Who did the Observer say was "still alive," Peter or Walter?

A butterfly can be seen painted on the side of a white trash can.

September's security system flashed the 'green-green-green-red' pattern from "The Equation" before exploding in "The Boy Must Live".

The green and yellow posters in the diner represent how this new timeline with the yellow/amber title sequence is starting to merge with the original timeline with the blue title sequence now that Peter has returned (blue + yellow = green).

Butterflies can be seen in Olivia's bedroom.

Broyles had jazz posters in his storage unit in "Earthling". His character in "Brown Betty" performed in a jazz bar.

The Redverse traded Alt Broyles for Fauxlivia by cutting off one of his legs to make their masses equal.

A seahorse can be seen in Walter's Monty Python trip.