Their relationship could become more protective. Rowan would be even more vigilant about Aelin's safety and well - being, constantly hovering around her. And Aelin might become more dependent on Rowan in some ways, relying on his strength and support during her pregnancy.
In many Hogwarts female Rowan fanfictions, Ben Copper is often paired with Rowan. They have a great dynamic where Ben's cautious nature contrasts with Rowan's more adventurous side. Another popular pairing is with Penny Haywood. Their friendship can easily turn into something more in fanfictions, as Penny's charm and Rowan's intelligence complement each other.
One great Hogwarts female Rowan fanfiction is 'Rowan's Adventure at Hogwarts'. It follows Rowan as she discovers a hidden magical mystery within the castle walls. Another is 'Rowan and the Forbidden Forest', where she bravely ventures into the forest to save a lost magical creature. There's also 'Rowan's Friendship Bonds' which focuses on her relationships with other students.
A fanfic that stands out is 'Celaena and Rowan: Against All Odds'. It's set in a different scenario where they have to fight against a powerful enemy while also dealing with their feelings for each other. The chemistry between Celaena and Rowan is palpable. Then there's 'The Love of Celaena and Rowan' which is more of a character - study type of fanfic, exploring their personalities and how they complement each other.
Yes, the story of the spectral child in Rowan County is quite famous. Supposedly, a small child's spirit haunts an old abandoned schoolhouse. People have heard the sound of a child laughing and running in the empty halls.
The plot also matters. It should be engaging, perhaps with new challenges for them to face as a couple. Like a new magical threat that they have to overcome together, which tests their relationship and makes it stronger. It could also explore their relationship in different settings or time periods that we haven't seen much in the original stories.