I stopped reading the comic right around the time they FIRST entered Alexandria in the book so I had ZERO idea about The Wolves or Negan or that group of cannibals or ANY of that stuff.
I'm just gonna predict from a writing standpoint that there's going to be a LOT more dead plot armor characters than people are guessing at. It might not be during the season finale, but season 7 is probably going to be a full on reset of the core group.
For the record, I'm not too annoyed by the decision to go after Daryl or Carol. Makes sense. They're family, and the team is only just starting to suspect that they dun goofed and that Negan might be much bigger than they suspected. Also, they're still feeling themselves and think that they're the top of the food chain. As viewers, we've never seen anything like this on the show. When Daryl goes out solo, he's normally the best there is at what he does.
Not anymore, apparently.
While I hate the ninja dark-daryl and his super crew, it's totally reasonable that when Carol and Daryl go all wolverine, core members of the team go after them.
However, from a writing perspective?
I suspect that Glenn is finished. Rule is you can't be a moral compass on TWD, and Morgan is starting to fill Glenn's role which sucks.
Maggie's switch to 'dark maggie' was sudden and jarring for me, but they're laying the seed for her to be a carol-like replacement. Her journey is, apparently, just beginning. They've not really done too much character work on her since the beginning. She's being prepped for an evolution. Can't have a little kickstart without tragedy.
Abraham and Rosita are next on the chopping block. Neither character serves any purpose anymore. Abraham, specifically, was meant to be a tough tank with an absurd no-nonsense intensity and a dark past looking for a family. He's found all that. Also, when you give characters something to love, drama rules dictates that it must be taken away. The question to ask is what happens on the other side of tragedy for Abraham? He becomes what? Darker? More driven? If I had to guess? Redundant. He's done. As is Rosita. Possibly even Sasha because....why not?
Carol is a tough one because her arc is almost done. She has evolved as a character, and on the surface, her story and Rick's are essentially the same. They've had a very similar mirroring evolutionary path. There's a 50/50 chance that she remains because through her, we can sort of see Rick. However, again, there's that redundancy and as much as I enjoy watching the Wolverine of the show, she's got a strong chance of getting killed OR going to a spin-off. However, her staying with the team as she is now or was before, serves no purpose.
Michonne. Again, a tough one. If you love it, watch it die. If they like her, me 'em cry. She has become Rick's Lieutenant, and serves to center Rick and friend Carl. She may still have story purposes, but it could go either way. If only to balance out Rick and Carl, or to be a sounding board for Carl, it might be a wrap for her.