Hoo boy, hell of an episode. Let's dive into it.
The Alexandrians Are Outnumbered
So, it's pretty obvious from the second encounter on that Rick and company are vastly outnumbered. The Saviors may be less competent than the Rickites overall, but they've got numbers by the boatload. The fact that Negan can risk so many people just to ensure that Rick and the rest get the message is a clear sign of how many people the Saviors have.
Who Are the Knights?
For lack of a better way to describe them, who are the knights that come up to Morgan and Carol? They ride horses, have armor and use spears, so I'd call them knights for the moment. Do they trade with the Hilltop folks? Or do they make their own spears too? Either way, it's interesting to see Morgan give up his "no killing" credo to save Carol, could he be coming around?
Enter Negan And the Wider World
Negan made his entrance, spending roughly 10-15 minutes lecturing Rick and the other survivors. The sheer numbers that Negan brought out indicate his reach and his power. With the main cast on their knees he had them shaking from fear all while making jokes about it. Clearly, Negan is a man who doesn't consider Rick and company a threat so much as an annoyance to be tamed.
So Who Got the Bat?
It's a question that is plaguing Walking Dead fans and will continue to plague them for months, who did Negan kill? The only clues we have are who isn't dead, of the "main" cast Carol and Morgan are straight out; and Negan (from the victim's POV) threatened to take out Carl's other eye if someone tried something, almost certainly indicating Rick and Carl are out...but that leaves us with a lot of people. Based on what happened in the past few episodes, I think there are three candidates: Abraham, Daryl and Eugene. A lot of folks said Abraham, but there are some strong indicators in favor of the other two. For Daryl, we have the fact that Norman Reedus has his own reality/stunt show now and the fact that he's killed a lot of Saviors, plus Daryl doesn't exist in the comics. Eugene in this last episode had some indicators pop up too, not only has he been saying "I'm a survivor", but he gave his most important information, how to make bullets, to Rick. Of course, Abraham is already dead in the comics and he's killed his fair share of Saviors too, plus he had that whole "I'm ready to have kids" discussion with Sasha, so it could be him. My strong suspicion is still on Daryl however, if only because that is a character that I think would have the most impact (pun intended) with the TV viewing crowd.