Another plotline could be centered around one of the Volturi members. Let's say they have some internal conflict that has broken their heart in a sense. A kind human or a different vampire who doesn't abide by the Volturi's strict rules comes along. They show the Volturi member that there is more to life than power and control. As a result, the Volturi member's heart is mended as they start to question their old ways and embrace new values.
It could also be that in this fanfiction, a character from the Twilight universe who has been wronged, like Jacob when Bella chose Edward, has his heart mended by an unexpected source. It might be a vampire from a different coven who has a different view on relationships. They help Jacob see that there are other things in life besides Bella, and through their interaction, his heart is mended as he discovers new purpose and new relationships.
It could be Bella. Since she goes through so much heartache in the original Twilight series, it would make sense for her to be the focus of a fanfiction about mending a heart. Maybe after the events with the Volturi or some other new threat, she is left broken and someone new comes in to help her heal.
The 'I'll Mend Your Heart' Twilight fanfiction is a beautifully written piece. It not only focuses on the romantic aspects but also on the self - discovery of the characters. It portrays how they grow through the process of having their hearts mended. The descriptions are vivid, and the dialogue feels very natural, which makes it easy to get immersed in the story.
The special thing about it is the fresh perspective on the Twilight characters. It takes a deeper look at their emotional states.
A plotline could be that the protagonist is a new pony in Ponyville who catches Twilight's eye. They start to interact more and more, and a romance blossoms. For instance, they meet at the library when the new pony is looking for a rare book.
Perhaps Leah discovers something about Jacob that makes her feel sorry for him, and she cries out of empathy. Jacob, in turn, is touched by her reaction and also sheds tears. This could be related to his struggles with his werewolf nature or his identity in the Twilight universe. Their shared moment of tears could lead to a new understanding between them and a shift in their relationship dynamic.
One possible plotline could be that Twilight Sparkle is exposed to some dark magic that gradually corrupts her and turns her into a demon. As a demon, she might struggle with her newfound dark nature while her friends try to save her. For example, they could search for a way to reverse the transformation by looking for ancient spells or artifacts.
One possible plotline could be Twilight Sparkle having PTSD from a past battle or a traumatic event in Equestria. This might cause her to have nightmares and struggle with her magic. She could then go on a journey to overcome her PTSD, perhaps with the help of her friends.
A plotline might involve a werewolf character with blind faith in their pack's traditions. But when a new threat emerges that the traditional ways can't handle, they have to decide whether to stick with their blind faith or adapt. In the context of 'Twilight', there could also be a plot where a character has blind faith in the idea of a 'true love' that crosses the boundaries between species, like a vampire - human relationship, and they go to great lengths to pursue it, facing many obstacles along the way.
A plotline might involve Twilight Sparkle being transported to a Spartan - based realm. There, she has to prove herself in their combat trials. As she progresses, she discovers a conspiracy within the Spartan society that she has to expose using her intelligence and magic. Or perhaps she teams up with a group of Spartans to retrieve a powerful magical artifact that is of great importance to both her world and the Spartan world.
One possible plotline could be that Lucy has a hidden talent for singing, and in the Twilight world, she uses her singing to attract the attention of a certain vampire or werewolf. Maybe it creates a new kind of bond or rivalry among the supernatural beings.