A prevalent theme is the exploration of 'what if' scenarios. What if Merlin had revealed his magic to Morgana earlier? What if Morgana hadn't turned evil? These questions drive many 'Merlin loves Morgana' fanfictions. Additionally, the theme of sacrifice might come up. For instance, Merlin might be willing to sacrifice his relationship with Arthur or his standing in Camelot to be with Morgana.
Yes, there are many. You can start by looking on fanfiction websites like Archive of Our Own. There, you'll find a variety of stories exploring the relationship between Merlin and Morgana. Some might focus on a romantic relationship that could have been, had things been different in the show. Others might take a more angsty turn, exploring the forbidden nature of their feelings in the context of the Arthurian world they inhabit.
One great 'Merlin Morgana fanfiction' is 'The Bond Beyond Magic'. It delves deep into their complex relationship, exploring how their powers could have been used together in a more united way against the common threats in Camelot. It presents a unique take on their dynamic, showing that they could have been allies instead of adversaries.
One great Merlin and Morgana fanfiction is 'The Enchanted Bond'. It delves into their complex relationship in a way that stays true to the characters' personalities from the show. The author does an excellent job of creating a believable world within the fanfiction.
One possibility is that there would be a great deal of tension. Old Merlin has seen so much and has his own wisdom, while Morgana has her own powers and motives. Maybe Merlin would try to persuade Morgana to abandon her dark path. He could use his experience and the bond they once had to appeal to her better nature.
Their relationship could develop in a complex way. If Morgana ties up Merlin out of anger or suspicion initially, but then realizes she was wrong, it could lead to her feeling guilty. This might make her more open to Merlin's friendship in the future, and they could gradually build trust.
She might be shocked at first. Given that in the original story Morgana has her own complex relationship with magic, seeing Merlin's magic could stir a mix of emotions in her, like envy or a sense of relief that she's not alone in her magical abilities.
In fanfiction, Evil Merlin can be depicted as a mastermind behind many dark plots, while Morgana is the face of the chaos they create. For instance, Merlin might be the one secretly pulling the strings, using his magic to make things happen, and Morgana is the one out in the open, using her charm and power to intimidate others. They are like two sides of the same evil coin, complementing each other in their wrongdoings.
Redemption is also a common theme. Since Morgana often takes a darker path in the original, many fanfictions explore the possibility of her redemption, with Merlin being a key factor in that journey. Love, in various forms, is another theme. It could be a platonic love born out of mutual understanding or a more romantic love that defies the odds.
One great Merlin and Morgana modern fanfiction is 'Modern Magic'. It reimagines their relationship in a contemporary setting with a great plot twist. Another one is 'City of Enchantment' which has a very interesting take on their powers in a modern city. 'The Modern Day Sorcerers' is also good as it shows their struggle to hide their magic in the modern world.