The story could see Harry focusing more on his friendships. He might spend more time with Ron and Hermione, strengthening those bonds. For example, they could go on more adventures together in search of Horcruxes.
Perhaps Cho realizes her mistake and tries to win Harry back. She could start by changing some of the things that caused problems in their relationship, like being more open about her feelings. However, Harry might be hesitant at first, not sure if he wants to give their relationship another chance.
The break - up could also lead to new character developments. Harry might become more reserved in matters of the heart, while Cho could grow more independent. The fanfiction could then explore how these changes affect their interactions with other characters in the wizarding world. For instance, Cho might form new friendships or Harry could become more involved in mentoring younger students.
Another way the story could develop is that there could be a chance for reconciliation later on. Maybe a new threat emerges that forces Artemis and Percy to work together again. Through this process, they start to understand each other better and realize that the reasons for the break - up were perhaps not as solid as they initially thought. However, this reconciliation would be a long and arduous process, filled with mistrust and hesitation at first.
One possible reason could be miscommunication. Maybe they didn't understand each other's feelings and needs clearly. For example, Harry's preoccupation with his fight against Voldemort might have made Cho feel neglected.
There could also be a chance for reconciliation in the future. Maybe they both realize that they made mistakes during the break - up. Draco could change his ways a bit more and Harry could be more understanding. Fanfiction often has these kinds of arcs where characters get a second chance at their relationship after some growth and learning.
In some fanfictions, after the kiss, they become more awkward around each other at first. Harry might be worried about how his friends will react, especially Hermione who has been a bit critical of Cho in the past. Cho, on the other hand, might be worried about what her Ravenclaw friends think.
Well, he might start to explore a new career path in the non - magic world. For example, he could become a writer and write about his past magical experiences from a new perspective.
After Ginny gives up on Harry, Harry himself could be forced to re - evaluate his life. He might realize how much he has taken Ginny for granted. This could lead to a period of self - reflection for Harry, and he may try to win Ginny back, which would create a whole new set of plot developments.
Harry would likely become more responsible. He's already been through a lot, but this would force him to grow up even faster. Cho, too, would transform. She might become more assertive, knowing she has to protect her unborn child. For example, she could stand up to those who try to bully or shame her because of the pregnancy.
Ginny might be initially heartbroken. She could lock herself in her room and cry for days. After all, she loves Harry deeply. But then, she might become angry and start to focus on her own life more. For example, she could throw herself into her Quidditch career or her studies at Hogwarts.
Some in the wizarding community might be shocked. Harry is a hero, and they expected him and Hermione to be together forever. There could be a lot of gossip and speculation. People might take sides, with some blaming Hermione for breaking Harry's heart.
Harry could be heartbroken. He might isolate himself for a while, not wanting to see anyone or do anything. Just staying in his room, crying and reminiscing about the good times with Edward.