Depending on how familiar you are with "The Walking Dead" comic book, you may or may not have picked up on a subtle moment from Sunday night's Season 6 premiere.
The moment involved Maggie and Glenn and may be a preview of major events from Robert Kirkman's origin story. Rick gathered the residents of the Alexandria Safe-Zone to lay out a plan to contain the massive herd of walkers trapped in a nearby quarry. Glenn volunteered to help lead one of the teams, but requested Maggie stay behind.
Glenn says Maggie should help Deanna recover emotionally from the loss of her husband. But Maggie counters with, "That's not the only reason."
What could Maggie be referring to? Odds are, she's pregnant.
In comic book, Maggie and Glenn occasionally discuss the idea of having a baby. Glenn is against it, but Maggie seems open to the idea.
Later on, it's revealed that Maggie is indeed pregnant and informs Glenn after he returns from an early scouting trip to the Hilltop Colony. Unfortunately, this is the beginning of the end for Glenn.
You can already see the show establishing Maggie and Glenn as its emotional core. This could be setting up a bigger payoff. If Maggie is (as I suspect) pregnant, it's the first in a series of major plot ploints involving the couple. Glenn decides the Hilltop Colony (a place that will come into play during the second half of Season 6) is a safer place to raise a child.
However, on the way to the colony, the group encounters the villainous Negan, leader of the Saviors. As a way to make a point to Rick, Negan brutally kills Glenn. Thus, eliminating one of the comic's central characters.
All of this would fall in line with recent rumors of where the show is headed. AMC has confirmed the casting of Paul "Jesus" Monroe, whose presence leads to the revelation of the Hilltop Colony.
The show has also put out a casting call for Negan, which likely means Glenn's days are numbers. For what it's worth, Maggie does give birth to a boy in the comic book and names him after her father. That might make you feel better.