I have a theory... Jack is the other Arcana card that doesn't get activated until he kills another card. Anyone else thinks so too? Anyways, Jack killed Evie's mum (despite his 'good' intentions), so I think Evie won't be with him in the end.
I think jack might be the other arcana card too. But I think that once evei fully realises jacks reasoning and that her mother wanted him too she will forgive him. She would have wanted her mum to die in peace instead of violence.