She would likely have a more slender and curvy figure. Her clothing would change drastically. Instead of the baggy pants and vest, she would be dressed in flowing robes or a dress. Maybe she would wear a headscarf or some sort of jewelry to adorn her new feminine look, like gold bracelets and a necklace with a precious stone.
Aladdin as a girl would have a more graceful gait. Her hands would be smaller and more delicate. Her face would have a softer look overall, with higher cheekbones and a more oval - shaped face. And she might have a beauty mark or some small, unique feature that adds to her charm as a girl.
His hair might become longer and more flowing. His features could become more delicate, with softer lines around his face. His body shape would likely become more curvaceous, with a slimmer waist and wider hips. And his eyes might take on a more feminine glint.
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.
I think Tails' personality would be a mix of his old self and some new elements. He would still be the tech - savvy character we know. But as a girl, he might be more in tune with his emotions. He could also become more diplomatic, trying to bridge the gap between male and female characters in the Sonic universe. For example, he might start to mediate disputes between male and female groups more often, using his new understanding of both sides.
His relationship with Sasuke would be very different. Sasuke might be more protective of Naruto as a little girl. He may not see her as the same rival he once did and instead feel a need to safeguard her.
It could become more protective. Shiro might feel the need to look out for Sora more, since Sora in a female form might seem more vulnerable. For example, in dangerous game situations, Shiro would be more likely to step in front of Sora.
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 human friends, it would be really tough. They might be scared of him at first. Astrid, for example, would be conflicted. She was attracted to Hiccup as a human, but now he's a dragon. She would have to overcome her fear and try to find a way to communicate with him. And Hiccup would feel isolated from his human friends, longing for the connection they once had.
If Sasuke becomes a girl, her appearance would transform in multiple ways. Physically, she'd probably have a smaller frame and less muscular build. Her hair could grow out to be really long and silky, which she might tie up with ribbons or hairpins. Her eyes could be made to look bigger and more alluring. Her skin might be smoother and have a bit of a glow. And she would start wearing more feminine accessories like earrings or a necklace. Her ninja outfits would also be redesigned to be more like a kunoichi's, with a shorter skirt perhaps and a more decorative top, while still maintaining some elements of her original style for the sake of recognition.
His relationships with his sisters would likely change. For instance, his older sisters might become more motherly or more competitive in different ways. His younger sisters could look up to him even more or be jealous of the new attention he gets. With his friends, some might be more hesitant to be around him, especially if they were only used to the male Lincoln. But some friends could also be very accepting and curious about his new experience.
His relationship with Sasuke would definitely change. Sasuke might be initially shocked and confused. He might see Naruto in a new light, not just as a rival but also as someone he needs to protect. Their dynamic could shift from pure rivalry to a more complex relationship with new emotions involved.