Leo might become more protective. His character could shift from being just a fearless ninja to a doting father - to - be. He'll be more cautious in battles, not wanting to risk leaving Karai alone. Karai could develop a softer side. Usually tough and fierce, the pregnancy might make her more empathetic and less impulsive.
It could become more complex as they start to think about the future. They would have to consider how to raise the child within the context of their different backgrounds. Leo, being a turtle and a part of the TMNT family, and Karai, with her own history. This might lead to some disagreements but also deeper conversations about their values and what they want for their family.
Jacob could be developed by showing his growth in responsibility. He might start learning about things like childbirth and parenting from the human side of his world. Renesmee could be developed as she discovers new aspects of her own body and abilities during the pregnancy.
Will would likely become more protective. He has always been brave, but now he has someone else to look out for. Elizabeth, on the other hand, might become more nurturing. She was already strong - willed, but the pregnancy could soften her in some ways.
For Aria, you could show her growing more empathetic. Maybe she starts volunteering at a local pregnancy center to learn more about what to expect. She could also become more assertive in asking for what she needs from Jake, like help with household chores. Jake, on the other hand, might become more responsible. He could start reading parenting books and become more involved in the financial planning for the baby.
Well, a plot could involve them learning about pregnancy and parenting in their unique world. Maybe they discover some ancient ninja techniques related to childbirth or child - rearing. Also, they could face external threats because of the baby. Enemies might see the baby as a weakness or a powerful asset. So, they have to protect themselves and the unborn child. And they might also have to make decisions about what kind of life they want their child to have, whether to keep it away from the ninja world or train it to be a ninja.
As a couple, they could develop better communication skills. The pregnancy is a big change, and they need to talk about their fears, hopes, and plans. They might start to understand each other on a deeper level, like Rumple realizing how much Belle is sacrificing for their family, and Belle seeing Rumple's insecurities about being a good father. This could lead to a stronger, more loving relationship.
Courtney's character could develop by becoming more nurturing. She was always a bit of a control - freak, but with the pregnancy, she might learn to let go a bit and rely on Duncan more. Duncan, on the other hand, could become more responsible. He used to be rebellious, but now he has to think about his family. He might start to see the value in stability.
Derek could become more responsible. He might start taking on more household chores, like cooking healthy meals for Casey, and be more protective of her. Casey, on the other hand, could develop more patience. Dealing with the hormonal changes and the physical discomfort of pregnancy, she learns to control her temper better and communicate more effectively with Derek.
Ririchiyo could become more protective and nurturing. Her usually strong - willed and sometimes aloof nature might soften as she focuses on the life growing inside her. Miketsukami, on the other hand, would likely become even more devoted to Ririchiyo and the baby. He might show more assertiveness in protecting them both.
Doug could develop by becoming more responsible. For example, he might start taking on more household chores or saving money for the baby. Evie could become more patient as she has to deal with the physical and emotional changes of pregnancy. She might also learn to rely on Doug more.