It's not unusual for some distributor across the world to send out copies of Doomtown earlier than intended. Ghost Town is no different. Thanks to the spoilers, I can go ahead and talk about the set here.
Lucretia is the newest Blessed for 108. While she is in the town square, she can use her attached hymns as if she was in the posse. Right now, the only Hymn she can use also comes in this set, Onward Christian Soldiers. It's a 2 value Hymn that effectively gives all your dudes in the posse a peacemaker effect. They get +1 Bullets, and cannot have their bullets reduced or changed to a draw by other player's card effects. The spell needs a 4 to pass, so Lucretia won't always guarantee a pull without some help. She will be able to be outside of the posse, preventing effects that could boot her spells or send her home. If your opponent wants to deal with her miracles, they will have to come to town to take her out. Until then, enjoy giving all your dudes a solid bullet bonus and protection.
Ambrose adds more card cycling to an already efficient original Fourth Ring Home, or can add some cycling to the slower card cycling homes. He's effectively a 1 influence chump if you use his ability each turn. If you discard a spell or Mystical Goods, he can unboot your outfit and you can use it again. Ever caught in that spot where you don't really need another copy of Soul Cage or Forget? Toss it to Ambrose. You'll get to cycle an additional card with the Fourth Ring Outfit or drop stats of several dudes with the Sanatorium. You could even make plenty of money running sideshows in town square with the Oddities of Nature. Ambrose pretty much fits anywhere in the Fourth Ring.
Francisco has the ability to run a Town Square job that can grab a Sidekick or horse from your discard pile and attach it for 2 less ghost rock. The list of Sidekicks and Horses can already show how useful Rosales might be. He might even be more valuable in a Morgan Horse deck than he would be in his own faction.
Carlton "Min" Rutherford
Carlton is another 108 dude that thrives off of having less ghost rock than your opponent. He even helps you get there! As a noon action, pay one ghost rock, if you then have less ghost rock in your stash than each other player, Carlton unboots. With Companhursts in the set, you'll only need to be tied for lowest ghost rock and Carlton will work. Even if you don't need the unboot, sometimes it is just best to spend some of that ghost rock so some of your other effects such as 108 Wordly Desires or Shizeng Lu will work.
Rhonda gives her horse the sidekick keyword. When that sidekick discards from her to cover casualties, you can return it to your hand instead. She's on value with the new sidekick based action, Requiem for a Good Boy, as well. If you only need to cover one casualty, you can discard it and send it back to your hand. If you need to cover more, you can discard it for Requiem instead.