There's something kind of perfect about Lydia ending up with Lucy. They're both kinda nuts in an evil way (with a side of genuinely kind, although Lydia's so very twisted now) and ambitious. I really thought when Lydia drugged Lucy that she had actually poisoned both drinks to do a murder-suicide; that the show would give us an ending of all the Wells women lost. Which is actually an enormous bummer, so yay for teaming up to kill Blayne and then laughing it up. I so hope we get renewed because I have got to know what those two are going to do now. Lucy wouldn't set up a rivalry with Greek Street, I wouldn't think, and it seems Lydia's lost her taste for the most cutthroat aspects of her former operation. Maybe they will do tailoring. Or start the molly house back up, with Lydia collecting her secrets again. I bet Bess (Emma? Elizabeth?) is out of Fleet as soon as Lucy, Fredo and Will can get the money together.
I love Cherry as a pimp, she's perfect for it. But there definitely felt like a scene was cut, because why would she sell out Lucy in the hopes of seeing Charles again only to state pretty much right after that Charles wasn't ever coming back? She must have had some hell of an epiphany or maybe even some word from him in the interim.
Good for Emily Lacey, finally getting what she's worked for. To me Hal was the far more interesting Pincher brother. I could believe him being genuinely in love and having a kind side, but also a dark streak that would have ended things badly for Emily. I did honestly believe she was choosing him over Greek Street and couldn't quite blame her since she's burned so many bridges with the Wells girls house. I didn't like her giving Hal yet another chance after he locked her in (I think she would have told him about the living hell of being locked up in Golden Square), but I could understand why she did it. But selling him to the navy and keeping the tavern? Nice.
Losing Charlotte was very hard this year, but I can't say there was a decline in quality this season. Knowing that JBF wanted out sort of softened the blow for me, and the fallout from her death was genuinely interesting, especially for Nancy and Lucy.
Early in the season I was thinking of Lady Leadsom as "lady stick-up-her-ass", but she shook that off when she visited Harriet. She's pretty awesome, since helping free Harriet and the others would do pretty much nothing for her personally. I feel like the scene with Nance walking into Lady Isabella's house was meant to be a second try at the meeting that opened the season; except this time the upper-class ladies may have been more willing to listen.
Lady Isabella is most likely monstrously rich now, even more than before. I assume Blayne's bastard can't inherit his title. I can see Anne being set up in the country like she discussed with Lady Isabella.
My biggest complaint of this season was the complete erasure of Amelia, Hunt, Mrs. Scanwell and Violet. Even a few words about their whereabouts would have been enough. I liked the new justice -- he seemed like a more mature Hunt; actually caring about the law but with a less naive perspective -- but his romance with Kate didn't do much for me. I feel like Kate in general was saved in her storyline by having a good actress and good writing. I don't really need to see any more of her. I assume when the prince changes ladies she'll go back to the justice and be happy (though I can see him trying to get her out of his house as a story in a possible 4th season).
This season feels less closed than last, what with the notion of Lydia and Lucy cohabiting just sitting there waiting to be expanded on. I hope that open-endedness is a sign that the showrunners have some confidence in renewal.