Having now seen episode 5 of Penny Deadful season 2, "Above the Vaulted Sky," I don't think I'd amend anything in my company list based on any of this week's revelations.
(Unless there were a roll to put Barry White music behind everyone's actions. Almost everybody got to break off a little sumpn-sumpn.)
The only thing I might add would be giving Madame Kali/Evelyn Poole the Curse spell from IHMN Gothic, based on how she's got Sir Malcolm ensorcelled. It's a 12-point spell, which would push her total to 83 points. Given Madame Kali's age and apparent level of power in the show, I'm OK with that.
If you wanted, you could swap Curse in for the Chameleon Skin spell, which I gave her for consistency's sake with the other Nightcomers, but we've never seen her use that particular talent. That exchange would leave her as a 71-point character.