But even bigger news: Gurira confirmed at the panel that this will be her last season as Michonne. She told the audience:
"This has been one of the purest joys of my life to play this role and be amongst these people, and amongst all of you. I am very, very thankful for the experience I've had, in ways I can't even express right now. My heart does not leave, the beauty of this show is that TWD family is forever. The connection between us never ends... It was about my calling in a sense and other things I feel called to and the opportunities I've had. All I'm filled with is a lot of pain about leaving and a lot of gratitude. I love you, and TWD Family is forever."
As for what we can expect of her final season on TWD, here are the highlights from the trailer:
We see Carol (Melissa McBride)and Alpha (Samantha Morton) face off, with Carol saying (if we heard this right): "Bitch has to die," while Alpha says ominously, "You should fear. me."
It also teases a long-in-the-works Neegan (Jeffrey Dean Morgan) and Daryl (Norman Reedus) showdown and Daryl and Carol talking about riding off into the west together.
The trailer ends with Michonne wielding what looks like Negan's barb-wire-wrapped bat. Who's going to be on the receiving end of lethal Lucille this time?
Executive producer Gale Anne Hurd also announced two new cast members:
Thora Birch (last seen on "Colony") will be playing a character named Gamma, a member of the Whisperers who is wildly protective of Alpha.
Kevin Carroll of "The Leftovers" and "Lucifer" will be playing Virgil, whom executive producer Gale Ann Hurd Hurd said encounters the group but is "desperately trying to get home to his family." Good luck with that, Virgil.
Season 10 will debut on October 6.
AMC will kick off 10 weeks of "Walking Dead "season 10 reveals leading up to the premiere.