Well, a lot of fanfiction focuses on the relationships within the family. Maybe a plotline where Renesmee starts to have a different view of her parents as she matures. She could start to question some of the decisions they made in the past. And there could be a story where she forms a very close bond with a new character, either a vampire or a werewolf, which causes some tension within the family.
One interesting plotline could be Renesmee's journey as she grows up in a world full of vampires and werewolves. For example, she might struggle to find her place among the two groups and also in the human world she has a connection to. Another could be a story where Bella and Edward face a new threat that endangers their family and they have to rely on Renesmee's unique powers to overcome it.
In some fanfics, there could be a plotline where Bella discovers new powers, which changes the dynamic between her and Edward. Another plotline could be Renesmee growing up faster than expected and facing challenges that the original story didn't cover. For example, in a fanfic I read, Renesmee had to deal with other supernatural beings who were jealous of her unique abilities.
One possible plotline could be Renesmee's growth and her relationship with Edward as she discovers her unique abilities. Maybe she starts to show extraordinary powers early on, and Edward has to guide her in controlling them.
One interesting fanfiction could be about Renesmee's growth and her unique relationship with both Edward and Bella. Maybe it shows her learning about the vampire world in more depth.
A plot could involve Renesmee's love life. Since she is a special being, finding a suitable partner would be difficult. It could be a story of her falling in love with a human who is initially afraid of her but gradually comes to accept her. Edward and Bella would be there to guide her through this new experience, while also being protective. Or perhaps a plot where Renesmee discovers a hidden power within herself that has been passed down from an ancient vampire ancestor, and she has to learn to control it with the help of Edward and Bella.
Maybe a plot where Renesmee has to face some sort of vampire - human conflict that her parents once faced, but in a different context. Since she is part - vampire and part - human, she could be a bridge between the two worlds and strive to bring peace. She could use her understanding of both sides to defuse tense situations.
Some fanfictions might have a plotline where Bella and Edward face challenges related to their new married life during the honeymoon. For instance, they have to figure out how to balance their different needs. Edward, being a vampire, has different sleeping patterns and dietary requirements. Bella, on the other hand, is still adjusting to her new life as a vampire's wife. This creates some interesting situations and conflicts that they need to resolve together.
One possible plotline could be that Edward returns after a long absence and finds Bella has changed in unexpected ways. Maybe she has developed new powers or a stronger sense of self. Another could be that they reunite in a dangerous situation, like facing a new vampire threat together, which forces them to re - evaluate their relationship.
One interesting plotline could be the inclusion of unique wedding traditions from different cultures. For example, incorporating a Celtic hand - fasting ceremony along with their traditional wedding. Another could be the appearance of unexpected guests, like long - lost relatives or old friends from their pasts that add drama and new interactions.
Another plotline might be a fight due to a misunderstanding about Bella's human friends. Edward could be overly protective and think that her human friends are putting her in danger, while Bella believes he's being too controlling. So, they have a big argument about her freedom and relationships with humans.
In some Edward and Bella marriage fanfiction, there could be a plotline where they face threats from other vampire clans who are not happy about their union. This would lead to a lot of action and drama, with Edward and Bella having to fight to protect their marriage and their family. They might have to rely on their friends and allies within the vampire and human worlds to overcome these challenges.