Their relationship would likely become more intimate. They would have to rely on each other more, sharing not just their joys but also their problems. For example, Tarrant might be more open about his insecurities to Alice, and Alice would be more involved in the day - to - day affairs of Wonderland that concern Tarrant.
Yes, there might be. There could be fanfics that focus on their friendship, adventures together, or how they support each other in different situations rather than just romantic or sexual relationships.
I don't think we can assume she's a villain. Just because she has 'another story' doesn't mean it's a story of villainy. She could be a bystander who gets involved in the events in Gotham in a positive way, like helping Batman or the police in some way.
Ingrid faced a series of challenges and unexpected events. But it's hard to give a detailed account without knowing more specific details of your question.
Their relationship would likely become more protective. Gregorio would be constantly worried about Ingrid and the baby. He might start taking on more dangerous tasks himself to keep her out of harm's way. Ingrid, on the other hand, might feel a bit smothered at times but also appreciate his concern. They would also have to communicate more about their future plans, both as spies and as parents.
There's also 'Alice and Tarrant's Unlikely Alliance'. In this fanfic, they start off as enemies but gradually come to understand and rely on each other. It's full of action and some really heart - warming moments. You can find it on several fanfic websites.
One great 'alice and tarrant love' fanfiction is 'The Wonderland Romance' which beautifully portrays their relationship's development. It has a lot of sweet moments between them.
The Red Queen could be an antagonist. She might see the pregnancy as a threat to her rule or simply be jealous of the attention Alice is getting. She could try to cause trouble for Alice and Tarrant, like sending her minions to disrupt their peaceful life while waiting for the baby.