No Turning Back story speculation

I’ve just taken a look at the preview page for No Turning Back, the next saddlebag, on the AEG website. The box art features a mysterious masked swordsman, there seem to be people running away from him and there is what looks like a burning gallows in the background. Going off that, it seems like the Sloane Gang arrives in town just in time for trouble, but who is the masked man? A Sloaner, or some ‘hero of the people’ stepping in where he sees the Law Dogs failing? Does Lawrence swing, or do Sloane & Co. rescue him (whether he wants them to or not)? Also, what could Lillian’s surprise for Max be?