Well, perhaps Bella tries to find a way to communicate with Edward telepathically from within the Volturi's lair. She could be using her unique connection with him to send out distress signals. Also, there might be a character within the Volturi who takes pity on Bella and decides to help her escape, leading to a whole series of internal power struggles within the Volturi coven.
One possible plot development could be that the Cullens launch a rescue mission. They might gather other vampire clans to help them, as the Volturi are very powerful. Another could be that Bella discovers some long - hidden secrets about the Volturi while in captivity, which changes her view of the vampire world completely.
There is also a possibility that a lone vampire, who has a sense of justice or who has been secretly observing Bella and has grown fond of her, decides to take on the Volturi and rescue her. This vampire could have some special abilities or knowledge that gives them an edge against the powerful Volturi.
Well, in a fanfiction where Luke is captured by Vader, there might be a plot where Vader tries to make Luke his apprentice in a more psychological way. He could isolate Luke and feed him false information about the Jedi and the Rebellion. Luke, on the other hand, might resist by connecting with the Force in new and unexpected ways. Maybe he manages to communicate with other Jedi spirits who guide him through the tough situation. And, there could be a sub - plot where Luke's friends are trying to rescue him, leading to an exciting showdown between the Rebels and Vader's forces.
In the 'Harry gets captured by Voldemort fanfiction', Harry could find an unexpected ally within Voldemort's ranks. Maybe a Death Eater who has a change of heart. This ally could help Harry escape or at least send messages to his friends. Another aspect could be that Voldemort performs some dark magic on Harry that gives him strange powers or visions. Harry then has to figure out how to use or overcome these new abilities while still being held captive. It could also be that the wizarding world outside is in chaos due to Harry's capture and different factions start to emerge, some wanting to negotiate with Voldemort for Harry's release and others wanting to go to war immediately.
One possible plot development could be the reactions of their friends and family. For example, Edward might be shocked and conflicted, given his past relationship with Bella. Another could be how Bella and Jacob deal with the responsibilities of impending parenthood. They might struggle with financial and living arrangements, especially considering they are still young.
Well, it could start with Jasper's reasons for turning Bella. Maybe he sees a potential in her that no one else does. After the transformation, Bella might go through a phase of self - discovery. She could be exploring the new world of vampires, learning about their history and culture. And there would be the inevitable love triangle or quadrangle situation. With her new vampire allure, she might attract other vampires, causing some jealousy or competition among them, especially if Edward is still in the picture.
One possible plot development could be that they face challenges in their relationship due to the unexpected pregnancy. Maybe there are family or social pressures.
One possible plot development could be that the sound that captured Sakura has some sort of magical or technological origin. For example, it could be an ancient spell that was cast by the enemy during the war. The captors might use the sound to control Sakura's mind and make her do their bidding. Maybe they want her to reveal secrets about her side's military strategies or the location of important resources. Another aspect could be that Sakura's friends or allies try to find a way to counteract the effect of the sound and rescue her. They might search for a counter - spell or a device that can nullify the sound's power.
One possibility is that Bella is forced to join the Volturi for some reason. Perhaps the Cullens are in trouble and the Volturi offer Bella a deal - join them and they'll spare the Cullens. So she enters their world, where she has to deal with the different personalities among the Volturi members, like Aro's calculating nature and Caius' harshness.
Perhaps she is deceived. In some fanfictions, she could be tricked into believing that the Volturi are the 'good guys' or that they can offer her something that the Cullens can't. It could be a false promise of safety or a way to protect her loved ones that leads her to become a Volturi member.
One possible motive is to rescue someone. Maybe a friend or a family member of theirs has been captured by the Volturi. Another could be to gain knowledge. The Volturi are very old and have a lot of secrets about vampire existence, so they might go there to learn more.