This episode's glyphs spell:
Though Peter doesn't exist in this new timeline, he briefly appears four times throughout the episode.
Observers are featured in the episode.
Painted text in a parking space in 'The Day We Died' says "ONLY SEPT". In 'Neither Here Nor There' Peter's fate is once again in September's hands as he's the only Observer who has any desire to prevent Peter from being fully erased.
A rail tanker in 'Neither Here Nor There' has "Brain Freeze" spray painted on it, foreshadowing the memory extraction process used by the killer in 'One Night in October'.
Walter had previously attempted to grow an ear inside an omelette in "Unleashed". (Image 1)
Lincoln pointed out an outlying piece of evidence to Peter to help them understand their suspect.
Lincoln pointed out an outlying witness to Olivia to help them gain new information about an incident.
They later have a similar exchange once their relationship develops.