The relationship with Gibbs would likely be different. Gibbs might be more protective of her as a girl. He could be more hesitant to send her into dangerous situations. For example, in a normal situation, he would just send Tony without much thought, but as a girl, he might second - guess it.
McGee's relationship with Tony Dinozzo as a girl could be interesting. He might be more shy around her at first, not knowing how to act. But as time goes on, they could develop a different kind of friendship. Maybe he would be more eager to help her with technical stuff, like he does in the regular show, but also be a bit more gentlemanly about it.
The relationship between Sasuke and Sakura would change significantly. Without Naruto as a buffer, they might have a more strained relationship. Sasuke could become even more aloof, and Sakura might struggle to understand him without Naruto's positive influence. Also, their team dynamic would be completely different, and they might not grow as much as they did in the original story.
The relationship between Naruto and Sasuke could become more complex. If Sasuke's future self has accomplished great things but at a cost, Naruto might question his own ideas of success. For Sakura, seeing her future self might make her more assertive in her relationship with the boys, especially if she has become a very respected ninja.
Their friendships could become stronger. Facing the unknown future together would likely bring them closer. They would rely on each other more than ever.
His character would develop a softer side. We know Tony as a tough NCIS agent. But with a daughter, he would show more tenderness. He might start to cry at her school plays or get overly excited about her achievements. His relationship with his female colleagues might also change, as he now has a different perspective on women due to being a father to a girl.
His patience would likely increase. Kids can be a handful, and Tony would need to learn to be patient. He might not snap as quickly at his colleagues when things get tough at work because he's getting practice in patience at home. He'd also become more empathetic. Understanding a child's needs would make him more in tune with the feelings of others in general.
His relationships would change drastically. His work colleagues, for example, would notice his different behavior. He might start to work at night and avoid daylight. His relationships with other vampires could also be complex. He could form alliances with some vampires who are more sympathetic to his situation, while others might see him as an outsider. In his social circle, he would become a mystery to those who knew him before, and he would have to find new ways to interact with people.
The relationship with his friends like Miroku and Sango would also shift. Miroku might be more careful in his interactions to avoid any misunderstandings. Sango might be more empathetic towards Inuyasha's situation. Also, any potential romantic interests that Inuyasha had in his male form could be completely turned on their head in his female form, creating a whole new dynamic.
With his female friends, there could be a shift in the dynamic as well. They might be more open with him now that he's a girl, sharing secrets and experiences that they previously wouldn't have. He could also become more involved in 'girl - only' activities, strengthening those friendships in new ways.
His relationship with Mary Jane would become very different. Instead of a romantic interest in the traditional sense, they could become more like sisters or best friends. Mary Jane might help the girl - Spiderman adjust to her new identity.
In a family setting, her relationship with her parents might also shift. Her father might become more protective, while her mother might start to have more mother - daughter type of conversations with her. And with siblings, there could be new dynamics depending on whether they are older or younger. If she has an older brother, he might be more protective too, and if she has a younger sister, they could become closer as sisters often do.