Her group fits into the zombie apocalypse in a different way than either Rick’s group or Negan and the Saviors in the comics, and she could be a fun addition to the rest of Season 7 if she’s the one wearing the boots.
Of course, the casting announcement also didn’t mention the character’s boots, so we can’t guarantee that the mystery person stalking Rick’s group is “Brion.”
Plus, it’s believable that she would be the one spying on Rick’s group.
Still, the description sounds pretty solid for a live-action version of the Walking Dead comics character called Magna, who is the tough-as-nails leader of a small group discovered by Jesus on one of his dangerous outings.