As he falls, Nick lands on top of him. The dumpster is right there. Some folks are saying he was still holding his gun, (it shows in the clip) and in the feeding frenzy of Neck being chowed on, he crawls under the dumpster.Some are saying glen is not dead and that the guts being pulled is from Nick, who landed on top of him. That would be a chickenshit move on the writers part if true cuz you KNOW we all will have to wait to find out. Probably a couple of weeks.
Or, Nick is dead but not too torn up, becomes a walker, and is seen again by the group AS a walker.
Maybe the writers are burned out and want FTWD to take over the story now. Or that stupid airplane one. Too many walker shows now. Enough already.
And..maybe the writers are conferring with that schmuck on GoT, who likes to kill off fav characters. Glenn has never been my fav, but he deserved a better death than that...if indeed he is dead.
Even if those were only Nick's guts being torn out, it seems unlikely that Glenn would survive. He was surrounded by dozens of Walkers. One of them would almost certainly go for his exposed face or limbs.
Even if they didn't, there's no way in Hell he could possibly stay perfectly still long enough for them all to move on and forget about him.
I think the cliff hanger season ending will show him surviving and making his way back. Its just a really weird way for him to die, being one of the original few that are left.