Sure, there could be. In such fanfiction, one can expect a blend of the two very different mythologies. Harry would likely inherit some of Legolas' skills, like his archery and elvish grace. It could also explore how the wizarding world of Harry Potter would interact with the Middle - earth of Lord of the Rings. Maybe Harry would have to deal with orcs instead of Death Eaters at some point in the story. There are so many possibilities for an author to play with in this kind of crossover fanfiction.
It would be a wild mix. Harry might have Legolas' long - lived elvish genes. He could be an amazing archer and have a connection to nature like Legolas. His magical powers from the wizarding world would be combined with elvish abilities, making him a super - powerful character. And the story could involve him bridging the gap between the two worlds.
In the official lore of both 'Harry Potter' and 'The Lord of the Rings' (where Legolas is from), this is completely impossible as they belong to different fictional universes. However, in the world of fanfiction, anything goes. Writers can create an alternate reality where magic systems cross over and such a relationship can be made to exist. It might require some really creative world - building to make it believable, but it can be a really interesting concept to explore.
One possible plot could be that Harry, as Legolas' son, discovers his true heritage in a very unexpected way. Maybe he has some elven powers that start to manifest during his time at Hogwarts, like extraordinary archery skills or the ability to move silently. This causes a stir among the wizarding community as they try to figure out how a half - elf could exist in their world.
In these fanfics, a frequent theme is the discovery of self. Harry, finding out he is the son of Legolas, has to re - evaluate who he is. Another common theme is the power dynamics. Combining the power of a wizard and an elf could be a very interesting aspect to explore. Friendship is also a theme. Harry would have to maintain his old friendships while making new ones in the elven world. And of course, the theme of love could be explored, like how his relationship with his new family and friends develops over time.
Hermione would probably be extremely curious. She would want to research every aspect of Harry's elven heritage. She'd be poring over books in the library to find out if there were any precedents for such a thing. Ron, on the other hand, might be a bit more skeptical at first. He'd probably make some jokes about it but eventually come around.
At first, Legolas could be defensive. He might feel that the fellowship will treat him differently now. But as they show acceptance, he could gradually open up more about his life as a prince. He might share stories of his elven kingdom, its beauty and its traditions. And he would probably become more determined to uphold the honor of his title while still being a loyal member of the fellowship, using his position to help the group in any way he can, whether it's through his combat skills which might be enhanced by his royal training or his knowledge of elven lore.
Some fanfictions may also explore their adventures in different lands. Maybe they travel to a far - off realm that has its own unique magic and creatures. Here, they have to adapt to new situations and rely on each other even more. Their combined abilities, Aragorn's strength and leadership and Legolas' archery skills and elven senses, would be crucial in these adventures.
Thranduil, with his own great archery skills, would influence Legolas in many ways. He might take Legolas to special archery ranges in the forest. There, he would teach him how to aim at different distances and in various lighting conditions. He would also instill in Legolas the importance of patience and focus when it comes to archery. As Legolas grows, Thranduil would gradually introduce more advanced techniques, such as shooting while moving or shooting in windy conditions.