Perhaps in the fanfiction, Alice sees Bella's death as a premonition and tries to prevent it. This could lead to a series of actions where she tries to change the future, like warning Bella or protecting her from the danger she foresees.
One possible plot could be that Alice then tries to seek revenge for Bella's death. Maybe she starts to investigate who is behind it and goes on a journey to find the truth.
It could be a new vampire who has a vendetta against Bella for some reason. Maybe this vampire wants to take over the territory or is jealous of Bella's relationship with the Cullens.
Maybe there's a new threat in town. A powerful vampire or a group of them who have their eyes on Bella for some reason. It could be that Bella's blood is too alluring to resist for some vampires, and they're planning an attack. Another reason could be that Bella gets involved in something dangerous on her own, perhaps trying to protect the Cullens or Jacob and his pack from a hidden danger.
A third theme could be self - sacrifice. If Bella sees a future that endangers those she loves, she may be willing to sacrifice her own well - being to change that future. This theme could explore the depth of her love and loyalty to her friends and family, as well as her own moral compass in the face of difficult decisions.
One possible plot could be that Alice suddenly loses all her memories related to Bella. This might lead to a series of misunderstandings within the Cullen family as they try to figure out what's wrong. For example, Edward might be confused as to why Alice seems indifferent to Bella's presence, which was previously not the case. And Bella herself could feel hurt and rejected, thinking that Alice has some sort of grudge against her now.
One consequence could be that Bella becomes more isolated. Without Alice's acceptance, she might not have access to the support network that Alice provides within the vampire community. This could make her more vulnerable to enemies or just generally more alone in that new world she's entering.
Well, one interesting plot could be a story where Alice and Bella face a new and powerful vampire threat together. They might have to combine their unique abilities to outwit the enemy.
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.
Well, one possible plot could be that Alice Rose has some unique powers that help Bella in a dangerous situation. For example, she might be able to foresee an attack on Bella and use her powers to create a diversion. Another plot could involve the two of them going on a journey together to discover something about their past or their families. And a third plot could be that they form a super - strong friendship that overcomes all the obstacles in their community.
Perhaps a plot where they embark on a journey to discover the origin of their Futa existence within the Twilight universe. This could involve meeting ancient vampires or other supernatural beings who hold the key to their transformation. They would face many challenges and learn more about themselves along the way.
Maybe a plot where they form a band in the fanfiction world. Alice with her elegance, Rosalie with her confidence, and Bella with her charm could create a really cool and unique musical group, performing in different places and attracting all kinds of fans.